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Sat, 07 Feb 2026 20:04:51 -0800 (PST) Received: from dianders.sjc.corp.google.com ([2a00:79e0:2e7c:8:6d43:22d7:40eb:81e6]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-127041e61b9sm7085064c88.8.2026.02.07.20.04.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 07 Feb 2026 20:04:49 -0800 (PST) From: Douglas Anderson To: jassisinghbrar@gmail.com Cc: Douglas Anderson , jay.buddhabhatti@amd.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, michal.simek@amd.com Subject: [PATCH v2 15/15] drivers: firmware: xilinx: Use mbox_ring_doorbell() instead of NULL message Date: Sat, 7 Feb 2026 20:01:37 -0800 Message-ID: <20260207200128.v2.15.Ib15a93253dc4bf021c41036096b8e289702878ba@changeid> X-Mailer: git-send-email 2.53.0.rc2.204.g2597b5adb4-goog In-Reply-To: <20260208040240.1971442-1-dianders@chromium.org> References: <20260208040240.1971442-1-dianders@chromium.org> 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 Content-Type: text/plain; charset="utf-8" As per the patch ("mailbox: Deprecate NULL mbox messages; Introduce mbox_ring_doorbell()"), we want to switch all users of NULL mailbox messages to use mbox_ring_doorbell(). This client only ever sent NULL messages, so the transition is straightforward. We can remove the call to mbox_client_txdone(). The call didn't do anything for NULL messages and it's now officially documented not to be called for doorbells. Signed-off-by: Douglas Anderson --- (no changes since v1) drivers/soc/xilinx/zynqmp_power.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soc/xilinx/zynqmp_power.c b/drivers/soc/xilinx/zynqmp_= power.c index 9b7b2858b22a..7d8e311fcdc7 100644 --- a/drivers/soc/xilinx/zynqmp_power.c +++ b/drivers/soc/xilinx/zynqmp_power.c @@ -144,7 +144,7 @@ static void ipi_receive_callback(struct mbox_client *cl= , void *data) &zynqmp_pm_init_suspend_work->callback_work); =20 /* Send NULL message to mbox controller to ack the message */ - ret =3D mbox_send_message(rx_chan, NULL); + ret =3D mbox_ring_doorbell(rx_chan); if (ret) pr_err("IPI ack failed. Error %d\n", ret); } --=20 2.53.0.rc2.204.g2597b5adb4-goog