From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stanimir Varbanov Subject: [PATCH v2 10/29] venus: hfi_venus: add suspend functionality for Venus 4xx Date: Tue, 15 May 2018 10:58:40 +0300 Message-ID: <20180515075859.17217-11-stanimir.varbanov@linaro.org> References: <20180515075859.17217-1-stanimir.varbanov@linaro.org> Return-path: In-Reply-To: <20180515075859.17217-1-stanimir.varbanov@linaro.org> Sender: linux-kernel-owner@vger.kernel.org To: Mauro Carvalho Chehab , Hans Verkuil Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Vikash Garodia , Stanimir Varbanov List-Id: linux-arm-msm@vger.kernel.org This adds suspend (power collapse) functionality by reusing the suspend function for Venus 3xx and also enables idle indicator property for Venus 4xx (where it is disabled by default). Signed-off-by: Stanimir Varbanov --- drivers/media/platform/qcom/venus/hfi_venus.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c index 284da69eb81b..109116e1545d 100644 --- a/drivers/media/platform/qcom/venus/hfi_venus.c +++ b/drivers/media/platform/qcom/venus/hfi_venus.c @@ -878,6 +878,14 @@ static int venus_sys_set_default_properties(struct venus_hfi_device *hdev) if (ret) dev_warn(dev, "setting fw debug msg ON failed (%d)\n", ret); + /* + * Idle indicator is disabled by default on some 4xx firmware versions, + * enable it explicitly in order to make suspend functional by checking + * WFI (wait-for-interrupt) bit. + */ + if (IS_V4(hdev->core)) + venus_sys_idle_indicator = true; + ret = venus_sys_set_idle_message(hdev, venus_sys_idle_indicator); if (ret) dev_warn(dev, "setting idle response ON failed (%d)\n", ret); @@ -1525,7 +1533,8 @@ static int venus_suspend_3xx(struct venus_core *core) static int venus_suspend(struct venus_core *core) { - if (core->res->hfi_version == HFI_VERSION_3XX) + if (core->res->hfi_version == HFI_VERSION_3XX || + core->res->hfi_version == HFI_VERSION_4XX) return venus_suspend_3xx(core); return venus_suspend_1xx(core); -- 2.14.1