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Wed, 17 Sep 2025 06:33:04 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id kOjbBSBWymiIXwAAD6G6ig (envelope-from ); Wed, 17 Sep 2025 06:33:04 +0000 From: Stanimir Varbanov To: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, Broadcom internal kernel review list , linux-pm@vger.kernel.org Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Ray Jui , Scott Branden , Lee Jones , Ulf Hansson , Willow Cunningham , Stefan Wahren , Saenz Julienne , Andrea della Porta , Phil Elwell , Jonathan Bell , Dave Stevenson , Stanimir Varbanov Subject: [PATCH 1/4] pmdomain: bcm: bcm2835-power: Prepare to support BCM2712 Date: Wed, 17 Sep 2025 09:32:30 +0300 Message-ID: <20250917063233.1270-2-svarbanov@suse.de> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20250917063233.1270-1-svarbanov@suse.de> References: <20250917063233.1270-1-svarbanov@suse.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spam-Level: X-Spamd-Result: default: False [-1.30 / 50.00]; BAYES_HAM(-3.00)[100.00%]; SUSPICIOUS_RECIPS(1.50)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:email,suse.de:mid,imap1.dmz-prg2.suse.org:helo]; RCVD_VIA_SMTP_AUTH(0.00)[]; FUZZY_RATELIMITED(0.00)[rspamd.com]; ARC_NA(0.00)[]; RCPT_COUNT_TWELVE(0.00)[22]; MIME_TRACE(0.00)[0:+]; TAGGED_RCPT(0.00)[dt]; FREEMAIL_CC(0.00)[kernel.org,broadcom.com,linaro.org,gmail.com,gmx.net,suse.com,raspberrypi.com,suse.de]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FREEMAIL_ENVRCPT(0.00)[gmail.com,gmx.net] X-Spam-Flag: NO X-Spam-Score: -1.30 Content-Type: text/plain; charset="utf-8" BCM2712 has a PM block but lacks asb and rpivid_asb register spaces. To avoid unwanted results add a check for asb existence during probe and also add a new register offset for bcm2712 to control grafx_v3d power domain. The decision to use the new register is implicit - if asb register base is null then the driver is probed for bcm2712 (the other supported SoCs have asb register space). Signed-off-by: Stanimir Varbanov --- drivers/pmdomain/bcm/bcm2835-power.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/pmdomain/bcm/bcm2835-power.c b/drivers/pmdomain/bcm/bc= m2835-power.c index f5289fd184d0..1d29addfe036 100644 --- a/drivers/pmdomain/bcm/bcm2835-power.c +++ b/drivers/pmdomain/bcm/bcm2835-power.c @@ -79,6 +79,7 @@ #define PM_IMAGE 0x108 #define PM_GRAFX 0x10c #define PM_PROC 0x110 +#define PM_GRAFX_2712 0x304 #define PM_ENAB BIT(12) #define PM_ISPRSTN BIT(8) #define PM_H264RSTN BIT(7) @@ -381,6 +382,9 @@ static int bcm2835_power_pd_power_on(struct generic_pm_= domain *domain) return bcm2835_power_power_on(pd, PM_GRAFX); =20 case BCM2835_POWER_DOMAIN_GRAFX_V3D: + if (!power->asb) + return bcm2835_asb_power_on(pd, PM_GRAFX_2712, + 0, 0, PM_V3DRSTN); return bcm2835_asb_power_on(pd, PM_GRAFX, ASB_V3D_M_CTRL, ASB_V3D_S_CTRL, PM_V3DRSTN); @@ -447,6 +451,9 @@ static int bcm2835_power_pd_power_off(struct generic_pm= _domain *domain) return bcm2835_power_power_off(pd, PM_GRAFX); =20 case BCM2835_POWER_DOMAIN_GRAFX_V3D: + if (!power->asb) + return bcm2835_asb_power_off(pd, PM_GRAFX_2712, + 0, 0, PM_V3DRSTN); return bcm2835_asb_power_off(pd, PM_GRAFX, ASB_V3D_M_CTRL, ASB_V3D_S_CTRL, PM_V3DRSTN); @@ -635,10 +642,12 @@ static int bcm2835_power_probe(struct platform_device= *pdev) power->asb =3D pm->asb; power->rpivid_asb =3D pm->rpivid_asb; =20 - id =3D readl(power->asb + ASB_AXI_BRDG_ID); - if (id !=3D BCM2835_BRDG_ID /* "BRDG" */) { - dev_err(dev, "ASB register ID returned 0x%08x\n", id); - return -ENODEV; + if (power->asb) { + id =3D readl(power->asb + ASB_AXI_BRDG_ID); + if (id !=3D BCM2835_BRDG_ID /* "BRDG" */) { + dev_err(dev, "ASB register ID returned 0x%08x\n", id); + return -ENODEV; + } } =20 if (power->rpivid_asb) { --=20 2.47.0 From nobody Thu Oct 2 11:50:45 2025 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E7AE72773DD for ; 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Wed, 17 Sep 2025 06:33:05 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id qKsXCCFWymiIXwAAD6G6ig (envelope-from ); Wed, 17 Sep 2025 06:33:05 +0000 From: Stanimir Varbanov To: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, Broadcom internal kernel review list , linux-pm@vger.kernel.org Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Ray Jui , Scott Branden , Lee Jones , Ulf Hansson , Willow Cunningham , Stefan Wahren , Saenz Julienne , Andrea della Porta , Phil Elwell , Jonathan Bell , Dave Stevenson , Stanimir Varbanov Subject: [PATCH 2/4] dt-bindings: soc: bcm: Add bcm2712 compatible Date: Wed, 17 Sep 2025 09:32:31 +0300 Message-ID: <20250917063233.1270-3-svarbanov@suse.de> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20250917063233.1270-1-svarbanov@suse.de> References: <20250917063233.1270-1-svarbanov@suse.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-1.51 / 50.00]; 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FREEMAIL_ENVRCPT(0.00)[gmail.com,gmx.net] X-Spam-Flag: NO X-Spam-Level: X-Rspamd-Queue-Id: 2D01521E48 X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Rspamd-Action: no action X-Spam-Score: -1.51 Content-Type: text/plain; charset="utf-8" Add bcm2712-pm compatible and update the bindings to satisfy it's requirements. The PM hardware block inside bcm2712 lacks the "asb" and "rpivid_asb" register ranges and also does not has clocks, update the bindings accordingly. Signed-off-by: Stanimir Varbanov --- .../bindings/soc/bcm/brcm,bcm2835-pm.yaml | 28 +++++++++++++++---- 1 file changed, 23 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml= b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml index e28ef198a801..c8d3d6131a8d 100644 --- a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml +++ b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml @@ -13,8 +13,7 @@ description: | maintainers: - Nicolas Saenz Julienne =20 -allOf: - - $ref: /schemas/watchdog/watchdog.yaml# +$ref: /schemas/watchdog/watchdog.yaml# =20 properties: compatible: @@ -22,14 +21,15 @@ properties: - enum: - brcm,bcm2835-pm - brcm,bcm2711-pm + - brcm,bcm2712-pm - const: brcm,bcm2835-pm-wdt =20 reg: - minItems: 2 + minItems: 1 maxItems: 3 =20 reg-names: - minItems: 2 + minItems: 1 items: - const: pm - const: asb @@ -62,7 +62,25 @@ required: - reg - "#power-domain-cells" - "#reset-cells" - - clocks + +allOf: + - if: + properties: + compatible: + contains: + enum: + - brcm,bcm2835-pm + - brcm,bcm2711-pm + then: + required: + - clocks + + properties: + reg: + minItems: 2 + + reg-names: + minItems: 2 =20 additionalProperties: false =20 --=20 2.47.0 From nobody Thu Oct 2 11:50:45 2025 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D26A928B4FA for ; 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Wed, 17 Sep 2025 06:33:06 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id OBlSDCJWymiIXwAAD6G6ig (envelope-from ); Wed, 17 Sep 2025 06:33:06 +0000 From: Stanimir Varbanov To: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, Broadcom internal kernel review list , linux-pm@vger.kernel.org Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Ray Jui , Scott Branden , Lee Jones , Ulf Hansson , Willow Cunningham , Stefan Wahren , Saenz Julienne , Andrea della Porta , Phil Elwell , Jonathan Bell , Dave Stevenson , Stanimir Varbanov Subject: [PATCH 3/4] mfd: bcm2835-pm: Add support for BCM2712 Date: Wed, 17 Sep 2025 09:32:32 +0300 Message-ID: <20250917063233.1270-4-svarbanov@suse.de> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20250917063233.1270-1-svarbanov@suse.de> References: <20250917063233.1270-1-svarbanov@suse.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-1.30 / 50.00]; BAYES_HAM(-3.00)[100.00%]; SUSPICIOUS_RECIPS(1.50)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FUZZY_RATELIMITED(0.00)[rspamd.com]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,suse.de:mid,suse.de:email]; RCPT_COUNT_TWELVE(0.00)[22]; MIME_TRACE(0.00)[0:+]; TO_DN_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TAGGED_RCPT(0.00)[dt]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FREEMAIL_CC(0.00)[kernel.org,broadcom.com,linaro.org,gmail.com,gmx.net,suse.com,raspberrypi.com,suse.de]; FROM_HAS_DN(0.00)[]; R_RATELIMIT(0.00)[to_ip_from(RL7mwea5a3cdyragbzqhrtit3y)]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FREEMAIL_ENVRCPT(0.00)[gmail.com,gmx.net] X-Spam-Flag: NO X-Spam-Level: X-Spam-Score: -1.30 Content-Type: text/plain; charset="utf-8" The BCM2712 SoC has PM block but lacks the "asb" and "rpivid_asb" register spaces, and doesn't need clock(s). Add a compatible string for bcm2712 to allow probe of bcm2835-wdt and bcm2835-power drivers. Signed-off-by: Stanimir Varbanov --- drivers/mfd/bcm2835-pm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mfd/bcm2835-pm.c b/drivers/mfd/bcm2835-pm.c index 3cb2b9423121..8bed59816e82 100644 --- a/drivers/mfd/bcm2835-pm.c +++ b/drivers/mfd/bcm2835-pm.c @@ -108,6 +108,7 @@ static const struct of_device_id bcm2835_pm_of_match[] = =3D { { .compatible =3D "brcm,bcm2835-pm-wdt", }, { .compatible =3D "brcm,bcm2835-pm", }, { .compatible =3D "brcm,bcm2711-pm", }, + { .compatible =3D "brcm,bcm2712-pm", }, {}, }; MODULE_DEVICE_TABLE(of, bcm2835_pm_of_match); --=20 2.47.0 From nobody Thu Oct 2 11:50:45 2025 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E95BF29B8D9 for ; Wed, 17 Sep 2025 06:33:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.130 ARC-Seal: i=1; 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FREEMAIL_ENVRCPT(0.00)[gmail.com,gmx.net] X-Spam-Score: -1.51 Content-Type: text/plain; charset="utf-8" Add watchdog device-tree node for bcm2712 SoC. Signed-off-by: Stanimir Varbanov --- arch/arm64/boot/dts/broadcom/bcm2712.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi b/arch/arm64/boot/dt= s/broadcom/bcm2712.dtsi index 0a9212d3106f..3094a8e69f35 100644 --- a/arch/arm64/boot/dts/broadcom/bcm2712.dtsi +++ b/arch/arm64/boot/dts/broadcom/bcm2712.dtsi @@ -243,6 +243,15 @@ uart10: serial@7d001000 { status =3D "disabled"; }; =20 + pm: watchdog@7d200000 { + compatible =3D "brcm,bcm2712-pm", "brcm,bcm2835-pm-wdt"; + reg =3D <0x7d200000 0x308>; + reg-names =3D "pm"; + #power-domain-cells =3D <1>; + #reset-cells =3D <1>; + system-power-controller; + }; + interrupt-controller@7d517000 { compatible =3D "brcm,bcm7271-l2-intc"; reg =3D <0x7d517000 0x10>; --=20 2.47.0