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charset="utf-8" From: Peng Fan There are 5 LPI2C, 5 LPUART and 32 DMA0 Channel resources per imx_rsrc.h, and they are in i.MX8QM, so enlarge the PD range for them. Signed-off-by: Peng Fan --- drivers/firmware/imx/scu-pd.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/firmware/imx/scu-pd.c b/drivers/firmware/imx/scu-pd.c index 84b673427073..5a28f5af592a 100644 --- a/drivers/firmware/imx/scu-pd.c +++ b/drivers/firmware/imx/scu-pd.c @@ -121,9 +121,9 @@ static const struct imx_sc_pd_range imx8qxp_scu_pd_rang= es[] =3D { { "audio-pll1", IMX_SC_R_AUDIO_PLL_1, 1, false, 0 }, { "audio-clk-0", IMX_SC_R_AUDIO_CLK_0, 1, false, 0 }, { "audio-clk-1", IMX_SC_R_AUDIO_CLK_1, 1, false, 0 }, - { "dma0-ch", IMX_SC_R_DMA_0_CH0, 16, true, 0 }, + { "dma0-ch", IMX_SC_R_DMA_0_CH0, 32, true, 0 }, { "dma1-ch", IMX_SC_R_DMA_1_CH0, 16, true, 0 }, - { "dma2-ch", IMX_SC_R_DMA_2_CH0, 5, true, 0 }, + { "dma2-ch", IMX_SC_R_DMA_2_CH0, 32, true, 0 }, { "asrc0", IMX_SC_R_ASRC_0, 1, false, 0 }, { "asrc1", IMX_SC_R_ASRC_1, 1, false, 0 }, { "esai0", IMX_SC_R_ESAI_0, 1, false, 0 }, @@ -143,11 +143,11 @@ static const struct imx_sc_pd_range imx8qxp_scu_pd_ra= nges[] =3D { /* DMA SS */ { "can", IMX_SC_R_CAN_0, 3, true, 0 }, { "ftm", IMX_SC_R_FTM_0, 2, true, 0 }, - { "lpi2c", IMX_SC_R_I2C_0, 4, true, 0 }, + { "lpi2c", IMX_SC_R_I2C_0, 5, true, 0 }, { "adc", IMX_SC_R_ADC_0, 2, true, 0 }, { "lcd", IMX_SC_R_LCD_0, 1, true, 0 }, { "lcd0-pwm", IMX_SC_R_LCD_0_PWM_0, 1, true, 0 }, - { "lpuart", IMX_SC_R_UART_0, 4, true, 0 }, + { "lpuart", IMX_SC_R_UART_0, 5, true, 0 }, { "lpspi", IMX_SC_R_SPI_0, 4, true, 0 }, { "irqstr_dsp", IMX_SC_R_IRQSTR_DSP, 1, false, 0 }, =20 --=20 2.37.1 From nobody Sun Feb 8 10:44:09 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 99FBFEB64DC for ; Fri, 14 Jul 2023 09:05:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234906AbjGNJFI (ORCPT ); Fri, 14 Jul 2023 05:05:08 -0400 Received: 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X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: QzqQWL2wk8AroPINA9W80xNXZK0pvY8qrcvKakVuXv+CIzCWUmrvCMu9qfrQYByxCQ/xCga79f7Z1LrgfqaFVA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR04MB7736 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Peng Fan Add more PDs for i.MX8QM and i.MX8DXL, including dma-ch, esai, gpu1, v2x-mu, seco-mu, hdmi, img and etc. Signed-off-by: Peng Fan --- drivers/firmware/imx/scu-pd.c | 65 +++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) diff --git a/drivers/firmware/imx/scu-pd.c b/drivers/firmware/imx/scu-pd.c index 5a28f5af592a..08583a10ac62 100644 --- a/drivers/firmware/imx/scu-pd.c +++ b/drivers/firmware/imx/scu-pd.c @@ -121,12 +121,16 @@ static const struct imx_sc_pd_range imx8qxp_scu_pd_ra= nges[] =3D { { "audio-pll1", IMX_SC_R_AUDIO_PLL_1, 1, false, 0 }, { "audio-clk-0", IMX_SC_R_AUDIO_CLK_0, 1, false, 0 }, { "audio-clk-1", IMX_SC_R_AUDIO_CLK_1, 1, false, 0 }, + { "mclk-out-0", IMX_SC_R_MCLK_OUT_0, 1, false, 0 }, + { "mclk-out-1", IMX_SC_R_MCLK_OUT_1, 1, false, 0 }, { "dma0-ch", IMX_SC_R_DMA_0_CH0, 32, true, 0 }, { "dma1-ch", IMX_SC_R_DMA_1_CH0, 16, true, 0 }, { "dma2-ch", IMX_SC_R_DMA_2_CH0, 32, true, 0 }, + { "dma3-ch", IMX_SC_R_DMA_3_CH0, 32, true, 0 }, { "asrc0", IMX_SC_R_ASRC_0, 1, false, 0 }, { "asrc1", IMX_SC_R_ASRC_1, 1, false, 0 }, { "esai0", IMX_SC_R_ESAI_0, 1, false, 0 }, + { "esai1", IMX_SC_R_ESAI_1, 1, false, 0 }, { "spdif0", IMX_SC_R_SPDIF_0, 1, false, 0 }, { "spdif1", IMX_SC_R_SPDIF_1, 1, false, 0 }, { "sai", IMX_SC_R_SAI_0, 3, true, 0 }, @@ -146,8 +150,10 @@ static const struct imx_sc_pd_range imx8qxp_scu_pd_ran= ges[] =3D { { "lpi2c", IMX_SC_R_I2C_0, 5, true, 0 }, { "adc", IMX_SC_R_ADC_0, 2, true, 0 }, { "lcd", IMX_SC_R_LCD_0, 1, true, 0 }, + { "lcd-pll", IMX_SC_R_ELCDIF_PLL, 1, true, 0 }, { "lcd0-pwm", IMX_SC_R_LCD_0_PWM_0, 1, true, 0 }, { "lpuart", IMX_SC_R_UART_0, 5, true, 0 }, + { "sim", IMX_SC_R_EMVSIM_0, 2, true, 0 }, { "lpspi", IMX_SC_R_SPI_0, 4, true, 0 }, { "irqstr_dsp", IMX_SC_R_IRQSTR_DSP, 1, false, 0 }, =20 @@ -163,10 +169,15 @@ static const struct imx_sc_pd_range imx8qxp_scu_pd_ra= nges[] =3D { =20 /* GPU SS */ { "gpu0-pid", IMX_SC_R_GPU_0_PID0, 4, true, 0 }, + { "gpu1-pid", IMX_SC_R_GPU_1_PID0, 4, true, 0 }, + =20 /* HSIO SS */ + { "pcie-a", IMX_SC_R_PCIE_A, 1, false, 0 }, + { "serdes-0", IMX_SC_R_SERDES_0, 1, false, 0 }, { "pcie-b", IMX_SC_R_PCIE_B, 1, false, 0 }, { "serdes-1", IMX_SC_R_SERDES_1, 1, false, 0 }, + { "sata-0", IMX_SC_R_SATA_0, 1, false, 0 }, { "hsio-gpio", IMX_SC_R_HSIO_GPIO, 1, false, 0 }, =20 /* MIPI SS */ @@ -186,11 +197,20 @@ static const struct imx_sc_pd_range imx8qxp_scu_pd_ra= nges[] =3D { { "lvds1-pwm", IMX_SC_R_LVDS_1_PWM_0, 1, false, 0 }, { "lvds1-lpi2c", IMX_SC_R_LVDS_1_I2C_0, 2, true, 0 }, =20 + { "mipi1", IMX_SC_R_MIPI_1, 1, 0 }, + { "mipi1-pwm0", IMX_SC_R_MIPI_1_PWM_0, 1, 0 }, + { "mipi1-i2c", IMX_SC_R_MIPI_1_I2C_0, 2, 1 }, + { "lvds1", IMX_SC_R_LVDS_1, 1, 0 }, + /* DC SS */ { "dc0", IMX_SC_R_DC_0, 1, false, 0 }, { "dc0-pll", IMX_SC_R_DC_0_PLL_0, 2, true, 0 }, { "dc0-video", IMX_SC_R_DC_0_VIDEO0, 2, true, 0 }, =20 + { "dc1", IMX_SC_R_DC_1, 1, false, 0 }, + { "dc1-pll", IMX_SC_R_DC_1_PLL_0, 2, true, 0 }, + { "dc1-video", IMX_SC_R_DC_1_VIDEO0, 2, true, 0 }, + /* CM40 SS */ { "cm40-i2c", IMX_SC_R_M4_0_I2C, 1, false, 0 }, { "cm40-intmux", IMX_SC_R_M4_0_INTMUX, 1, false, 0 }, @@ -205,11 +225,56 @@ static const struct imx_sc_pd_range imx8qxp_scu_pd_ra= nges[] =3D { { "cm41-mu-a1", IMX_SC_R_M4_1_MU_1A, 1, false, 0}, { "cm41-lpuart", IMX_SC_R_M4_1_UART, 1, false, 0}, =20 + /* CM41 SS */ + { "cm41_i2c", IMX_SC_R_M4_1_I2C, 1, false, 0 }, + { "cm41_intmux", IMX_SC_R_M4_1_INTMUX, 1, false, 0 }, + + /* DB SS */ + { "perf", IMX_SC_R_PERF, 1, false, 0}, + /* IMAGE SS */ { "img-jpegdec-mp", IMX_SC_R_MJPEG_DEC_MP, 1, false, 0 }, { "img-jpegdec-s0", IMX_SC_R_MJPEG_DEC_S0, 4, true, 0 }, { "img-jpegenc-mp", IMX_SC_R_MJPEG_ENC_MP, 1, false, 0 }, { "img-jpegenc-s0", IMX_SC_R_MJPEG_ENC_S0, 4, true, 0 }, + + /* SECO SS */ + { "seco_mu", IMX_SC_R_SECO_MU_2, 3, true, 2}, + + /* V2X SS */ + { "v2x_mu", IMX_SC_R_V2X_MU_0, 2, true, 0}, + { "v2x_mu", IMX_SC_R_V2X_MU_2, 1, true, 2}, + { "v2x_mu", IMX_SC_R_V2X_MU_3, 2, true, 3}, + { "img-pdma", IMX_SC_R_ISI_CH0, 8, true, 0 }, + { "img-csi0", IMX_SC_R_CSI_0, 1, false, 0 }, + { "img-csi0-i2c0", IMX_SC_R_CSI_0_I2C_0, 1, false, 0 }, + { "img-csi0-pwm0", IMX_SC_R_CSI_0_PWM_0, 1, false, 0 }, + { "img-csi1", IMX_SC_R_CSI_1, 1, false, 0 }, + { "img-csi1-i2c0", IMX_SC_R_CSI_1_I2C_0, 1, false, 0 }, + { "img-csi1-pwm0", IMX_SC_R_CSI_1_PWM_0, 1, false, 0 }, + { "img-parallel", IMX_SC_R_PI_0, 1, false, 0 }, + { "img-parallel-i2c0", IMX_SC_R_PI_0_I2C_0, 1, false, 0 }, + { "img-parallel-pwm0", IMX_SC_R_PI_0_PWM_0, 2, true, 0 }, + { "img-parallel-pll", IMX_SC_R_PI_0_PLL, 1, false, 0 }, + + /* HDMI TX SS */ + { "hdmi-tx", IMX_SC_R_HDMI, 1, false, 0}, + { "hdmi-tx-i2s", IMX_SC_R_HDMI_I2S, 1, false, 0}, + { "hdmi-tx-i2c0", IMX_SC_R_HDMI_I2C_0, 1, false, 0}, + { "hdmi-tx-pll0", IMX_SC_R_HDMI_PLL_0, 1, false, 0}, + { "hdmi-tx-pll1", IMX_SC_R_HDMI_PLL_1, 1, false, 0}, + + /* HDMI RX SS */ + { "hdmi-rx", IMX_SC_R_HDMI_RX, 1, false, 0}, + { "hdmi-rx-pwm", IMX_SC_R_HDMI_RX_PWM_0, 1, false, 0}, + { "hdmi-rx-i2c0", IMX_SC_R_HDMI_RX_I2C_0, 1, false, 0}, + { "hdmi-rx-bypass", IMX_SC_R_HDMI_RX_BYPASS, 1, false, 0}, + + /* SECURITY SS */ + { "sec-jr", IMX_SC_R_CAAM_JR2, 2, true, 2}, + + /* BOARD SS */ + { "board", IMX_SC_R_BOARD_R0, 8, true, 0}, }; =20 static const struct imx_sc_pd_soc imx8qxp_scu_pd =3D { --=20 2.37.1 From nobody Sun Feb 8 10:44:09 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by 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X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: KUh+e/lwdVMW0h+bCNloROdq0TBjQqbXLzCU2i2wP8JdIirh05r/uw9HwUNMetl9DZ9KU1A5BaxgEi7s9q0OeA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR04MB7736 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Dong Aisheng Do not power off console if no_console_suspend Signed-off-by: Dong Aisheng Signed-off-by: Peng Fan --- drivers/firmware/imx/scu-pd.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/firmware/imx/scu-pd.c b/drivers/firmware/imx/scu-pd.c index 08583a10ac62..6770be51d234 100644 --- a/drivers/firmware/imx/scu-pd.c +++ b/drivers/firmware/imx/scu-pd.c @@ -52,6 +52,7 @@ */ =20 #include +#include #include #include #include @@ -324,6 +325,10 @@ static int imx_sc_pd_power(struct generic_pm_domain *d= omain, bool power_on) msg.resource =3D pd->rsrc; msg.mode =3D power_on ? 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Fri, 14 Jul 2023 09:05:06 +0000 From: "Peng Fan (OSS)" To: shawnguo@kernel.org, s.hauer@pengutronix.de Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, Frank.Li@nxp.com, aisheng.dong@nxp.com, marcel.ziswiler@toradex.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Peng Fan Subject: [PATCH 4/7] firmware: imx: scu-pd: Suppress bind attrs Date: Fri, 14 Jul 2023 17:09:33 +0800 Message-Id: <20230714090936.937344-5-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230714090936.937344-1-peng.fan@oss.nxp.com> References: <20230714090936.937344-1-peng.fan@oss.nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SG2PR02CA0130.apcprd02.prod.outlook.com (2603:1096:4:188::8) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DU0PR04MB9417:EE_|AS8PR04MB8069:EE_ X-MS-Office365-Filtering-Correlation-Id: 3cfd2cff-08d4-4c62-e4a1-08db84496a9a X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-LD-Processed: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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charset="utf-8" From: Peng Fan This driver is registered as platform driver, but removing and binding again would cause system not workable. So suppress bind attrs. Signed-off-by: Peng Fan --- drivers/firmware/imx/scu-pd.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/firmware/imx/scu-pd.c b/drivers/firmware/imx/scu-pd.c index 6770be51d234..9f8dac7950fe 100644 --- a/drivers/firmware/imx/scu-pd.c +++ b/drivers/firmware/imx/scu-pd.c @@ -488,6 +488,7 @@ static struct platform_driver imx_sc_pd_driver =3D { .driver =3D { .name =3D "imx-scu-pd", .of_match_table =3D imx_sc_pd_match, + .suppress_bind_attrs =3D true, }, .probe =3D imx_sc_pd_probe, }; --=20 2.37.1 From nobody Sun Feb 8 10:44:09 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19379EB64DA for ; Fri, 14 Jul 2023 09:05:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235331AbjGNJFg (ORCPT ); Fri, 14 Jul 2023 05:05:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38890 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235126AbjGNJFX (ORCPT ); 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Received: from DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) by AS8PR04MB8069.eurprd04.prod.outlook.com (2603:10a6:20b:3f5::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6588.27; Fri, 14 Jul 2023 09:05:09 +0000 Received: from DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::5c40:ed07:b875:18c0]) by DU0PR04MB9417.eurprd04.prod.outlook.com ([fe80::5c40:ed07:b875:18c0%3]) with mapi id 15.20.6588.027; Fri, 14 Jul 2023 09:05:09 +0000 From: "Peng Fan (OSS)" To: shawnguo@kernel.org, s.hauer@pengutronix.de Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, Frank.Li@nxp.com, aisheng.dong@nxp.com, marcel.ziswiler@toradex.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Peng Fan Subject: [PATCH 5/7] firmware: imx: scu-pd: initialize is_off according to HW state Date: Fri, 14 Jul 2023 17:09:34 +0800 Message-Id: <20230714090936.937344-6-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230714090936.937344-1-peng.fan@oss.nxp.com> References: <20230714090936.937344-1-peng.fan@oss.nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SG2PR02CA0130.apcprd02.prod.outlook.com (2603:1096:4:188::8) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DU0PR04MB9417:EE_|AS8PR04MB8069:EE_ X-MS-Office365-Filtering-Correlation-Id: 752a5484-8a2c-40b4-1064-08db84496ccb X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-LD-Processed: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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charset="utf-8" From: Peng Fan The current code default set is_off to true except console resource, this implies bootloader should power off all the resources it uses. But this is not always true, let's check the HW state and set is_off. Signed-off-by: Peng Fan --- drivers/firmware/imx/scu-pd.c | 59 ++++++++++++++++++++++++++++++++--- 1 file changed, 55 insertions(+), 4 deletions(-) diff --git a/drivers/firmware/imx/scu-pd.c b/drivers/firmware/imx/scu-pd.c index 9f8dac7950fe..763af1ac454d 100644 --- a/drivers/firmware/imx/scu-pd.c +++ b/drivers/firmware/imx/scu-pd.c @@ -72,6 +72,22 @@ struct imx_sc_msg_req_set_resource_power_mode { u8 mode; } __packed __aligned(4); =20 +struct req_get_resource_mode { + u16 resource; +}; + +struct resp_get_resource_mode { + u8 mode; +}; + +struct imx_sc_msg_req_get_resource_power_mode { + struct imx_sc_rpc_msg hdr; + union { + struct req_get_resource_mode req; + struct resp_get_resource_mode resp; + } data; +} __packed __aligned(4); + #define IMX_SCU_PD_NAME_SIZE 20 struct imx_sc_pm_domain { struct generic_pm_domain pd; @@ -96,6 +112,14 @@ struct imx_sc_pd_soc { =20 static int imx_con_rsrc; =20 +/* Align with the IMX_SC_PM_PW_MODE_[OFF,STBY,LP,ON] macros */ +static const char * const imx_sc_pm_mode[] =3D { + "IMX_SC_PM_PW_MODE_OFF", + "IMX_SC_PM_PW_MODE_STBY", + "IMX_SC_PM_PW_MODE_LP", + "IMX_SC_PM_PW_MODE_ON" +}; + static const struct imx_sc_pd_range imx8qxp_scu_pd_ranges[] =3D { /* LSIO SS */ { "pwm", IMX_SC_R_PWM_0, 8, true, 0 }, @@ -308,6 +332,27 @@ static void imx_sc_pd_get_console_rsrc(void) imx_con_rsrc =3D specs.args[0]; } =20 +static int imx_sc_get_pd_power(struct device *dev, u32 rsrc) +{ + struct imx_sc_msg_req_get_resource_power_mode msg; + struct imx_sc_rpc_msg *hdr =3D &msg.hdr; + int ret; + + hdr->ver =3D IMX_SC_RPC_VERSION; + hdr->svc =3D IMX_SC_RPC_SVC_PM; + hdr->func =3D IMX_SC_PM_FUNC_GET_RESOURCE_POWER_MODE; + hdr->size =3D 2; + + msg.data.req.resource =3D rsrc; + + ret =3D imx_scu_call_rpc(pm_ipc_handle, &msg, true); + if (ret) + dev_err(dev, "failed to get power resource %d mode, ret %d\n", + rsrc, ret); + + return msg.data.resp.mode; +} + static int imx_sc_pd_power(struct generic_pm_domain *domain, bool power_on) { struct imx_sc_msg_req_set_resource_power_mode msg; @@ -372,8 +417,8 @@ imx_scu_add_pm_domain(struct device *dev, int idx, const struct imx_sc_pd_range *pd_ranges) { struct imx_sc_pm_domain *sc_pd; - bool is_off =3D true; - int ret; + bool is_off; + int mode, ret; =20 if (!imx_sc_rm_is_resource_owned(pm_ipc_handle, pd_ranges->rsrc + idx)) return NULL; @@ -394,10 +439,16 @@ imx_scu_add_pm_domain(struct device *dev, int idx, "%s", pd_ranges->name); =20 sc_pd->pd.name =3D sc_pd->name; - if (imx_con_rsrc =3D=3D sc_pd->rsrc) { + if (imx_con_rsrc =3D=3D sc_pd->rsrc) sc_pd->pd.flags =3D GENPD_FLAG_RPM_ALWAYS_ON; + + mode =3D imx_sc_get_pd_power(dev, pd_ranges->rsrc + idx); + if (mode =3D=3D IMX_SC_PM_PW_MODE_ON) is_off =3D false; - } + else + is_off =3D true; + + dev_dbg(dev, "%s : %s\n", sc_pd->name, imx_sc_pm_mode[mode]); =20 if (sc_pd->rsrc >=3D IMX_SC_R_LAST) { dev_warn(dev, "invalid pd %s rsrc id %d found", --=20 2.37.1 From nobody Sun Feb 8 10:44:09 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A6309EB64DC for ; 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charset="utf-8" From: Peng Fan Add multi states support, this is to support devices could run in LP mode when runtime suspend, and OFF mode when system suspend. Signed-off-by: Peng Fan --- drivers/firmware/imx/scu-pd.c | 48 +++++++++++++++++++++++++++++++++-- 1 file changed, 46 insertions(+), 2 deletions(-) diff --git a/drivers/firmware/imx/scu-pd.c b/drivers/firmware/imx/scu-pd.c index 763af1ac454d..31de56366a50 100644 --- a/drivers/firmware/imx/scu-pd.c +++ b/drivers/firmware/imx/scu-pd.c @@ -65,6 +65,12 @@ #include #include =20 +enum { + PD_STATE_LP, + PD_STATE_OFF, + PD_STATE_MAX +}; + /* SCU Power Mode Protocol definition */ struct imx_sc_msg_req_set_resource_power_mode { struct imx_sc_rpc_msg hdr; @@ -368,7 +374,8 @@ static int imx_sc_pd_power(struct generic_pm_domain *do= main, bool power_on) hdr->size =3D 2; =20 msg.resource =3D pd->rsrc; - msg.mode =3D power_on ? IMX_SC_PM_PW_MODE_ON : IMX_SC_PM_PW_MODE_LP; + msg.mode =3D power_on ? IMX_SC_PM_PW_MODE_ON : pd->pd.state_idx ? + IMX_SC_PM_PW_MODE_OFF : IMX_SC_PM_PW_MODE_LP; =20 /* keep uart console power on for no_console_suspend */ if (imx_con_rsrc =3D=3D pd->rsrc && !console_suspend_enabled && !power_on) @@ -412,11 +419,33 @@ static struct generic_pm_domain *imx_scu_pd_xlate(str= uct of_phandle_args *spec, return domain; } =20 +static bool imx_sc_pd_suspend_ok(struct device *dev) +{ + /* Always true */ + return true; +} + +static bool imx_sc_pd_power_down_ok(struct dev_pm_domain *pd) +{ + struct generic_pm_domain *genpd =3D pd_to_genpd(pd); + + /* For runtime suspend, choose LP mode */ + genpd->state_idx =3D 0; + + return true; +} + +struct dev_power_governor imx_sc_pd_qos_governor =3D { + .suspend_ok =3D imx_sc_pd_suspend_ok, + .power_down_ok =3D imx_sc_pd_power_down_ok, +}; + static struct imx_sc_pm_domain * imx_scu_add_pm_domain(struct device *dev, int idx, const struct imx_sc_pd_range *pd_ranges) { struct imx_sc_pm_domain *sc_pd; + struct genpd_power_state *states; bool is_off; int mode, ret; =20 @@ -427,9 +456,22 @@ imx_scu_add_pm_domain(struct device *dev, int idx, if (!sc_pd) return ERR_PTR(-ENOMEM); =20 + states =3D devm_kcalloc(dev, PD_STATE_MAX, sizeof(*states), GFP_KERNEL); + if (!states) { + devm_kfree(dev, sc_pd); + return ERR_PTR(-ENOMEM); + } + sc_pd->rsrc =3D pd_ranges->rsrc + idx; sc_pd->pd.power_off =3D imx_sc_pd_power_off; sc_pd->pd.power_on =3D imx_sc_pd_power_on; + states[PD_STATE_LP].power_off_latency_ns =3D 25000; + states[PD_STATE_LP].power_on_latency_ns =3D 25000; + states[PD_STATE_OFF].power_off_latency_ns =3D 2500000; + states[PD_STATE_OFF].power_on_latency_ns =3D 2500000; + + sc_pd->pd.states =3D states; + sc_pd->pd.state_count =3D PD_STATE_MAX; =20 if (pd_ranges->postfix) snprintf(sc_pd->name, sizeof(sc_pd->name), @@ -455,14 +497,16 @@ imx_scu_add_pm_domain(struct device *dev, int idx, sc_pd->name, sc_pd->rsrc); =20 devm_kfree(dev, sc_pd); + devm_kfree(dev, states); return NULL; } =20 - ret =3D pm_genpd_init(&sc_pd->pd, NULL, is_off); 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Fri, 14 Jul 2023 09:05:17 +0000 From: "Peng Fan (OSS)" To: shawnguo@kernel.org, s.hauer@pengutronix.de Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, Frank.Li@nxp.com, aisheng.dong@nxp.com, marcel.ziswiler@toradex.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Peng Fan Subject: [PATCH 7/7] firmware: imx: scu-pd: change init level to subsys_initcall Date: Fri, 14 Jul 2023 17:09:36 +0800 Message-Id: <20230714090936.937344-8-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230714090936.937344-1-peng.fan@oss.nxp.com> References: <20230714090936.937344-1-peng.fan@oss.nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SG2PR02CA0130.apcprd02.prod.outlook.com (2603:1096:4:188::8) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DU0PR04MB9417:EE_|AS8PR04MB8916:EE_ X-MS-Office365-Filtering-Correlation-Id: 566ecdda-e303-4c64-46db-08db84497124 X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-LD-Processed: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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charset="utf-8" From: Dong Aisheng Change power domain init level to subsys_initcall to ensure it's probed before most devices to avoid unnecessary defer probe. Signed-off-by: Dong Aisheng Signed-off-by: Peng Fan --- drivers/firmware/imx/scu-pd.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/imx/scu-pd.c b/drivers/firmware/imx/scu-pd.c index 31de56366a50..5e6dbadb43ae 100644 --- a/drivers/firmware/imx/scu-pd.c +++ b/drivers/firmware/imx/scu-pd.c @@ -587,7 +587,12 @@ static struct platform_driver imx_sc_pd_driver =3D { }, .probe =3D imx_sc_pd_probe, }; -builtin_platform_driver(imx_sc_pd_driver); + +static int __init imx_sc_pd_driver_init(void) +{ + return platform_driver_register(&imx_sc_pd_driver); +} +subsys_initcall(imx_sc_pd_driver_init); =20 MODULE_AUTHOR("Dong Aisheng "); MODULE_DESCRIPTION("IMX SCU Power Domain driver"); --=20 2.37.1