diff mbox series

[v2,1/3] drm/msm/dsi: Allow to specify dsi config as pdata

Message ID 1644853060-12222-1-git-send-email-loic.poulain@linaro.org
State Accepted
Commit 05ae15e762718d4c76fa34b2a62072940db1283c
Headers show
Series [v2,1/3] drm/msm/dsi: Allow to specify dsi config as pdata | expand

Commit Message

Loic Poulain Feb. 14, 2022, 3:37 p.m. UTC 
Config autodetect based on DSI controller version is quite limited
since several qcom SoCs can integrate a DSI controller with the same
version, but with different config (io_offset, supplies, etc).

This change allows to specify dsi config via device data pointer.
config autodetect is still used in case data pointer is NULL.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 v2: no change

 drivers/gpu/drm/msm/dsi/dsi.c      | 2 +-
 drivers/gpu/drm/msm/dsi/dsi_host.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

Comments

Rob Herring Feb. 22, 2022, 9:54 p.m. UTC | #1 
On Mon, 14 Feb 2022 16:37:40 +0100, Loic Poulain wrote:
> Add DSI block specific qcm2290 compatible string as valid
> Qualcomm DSI controller.
> 
> Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
> ---
>  v2: no change
> 
>  .../devicetree/bindings/display/msm/dsi-controller-main.yaml         | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 

Acked-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/dsi/dsi.c b/drivers/gpu/drm/msm/dsi/dsi.c
index 0525488..06a9008 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.c
+++ b/drivers/gpu/drm/msm/dsi/dsi.c
@@ -170,7 +170,7 @@  static int dsi_dev_remove(struct platform_device *pdev)
 }
 
 static const struct of_device_id dt_match[] = {
-	{ .compatible = "qcom,mdss-dsi-ctrl" },
+	{ .compatible = "qcom,mdss-dsi-ctrl", .data = NULL /* autodetect cfg */ },
 	{}
 };
 
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 6b3ced4..c540acc 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -212,6 +212,10 @@  static const struct msm_dsi_cfg_handler *dsi_get_config(
 	int ret;
 	u32 major = 0, minor = 0;
 
+	cfg_hnd = device_get_match_data(dev);
+	if (cfg_hnd)
+		return cfg_hnd;
+
 	ahb_clk = msm_clk_get(msm_host->pdev, "iface");
 	if (IS_ERR(ahb_clk)) {
 		pr_err("%s: cannot get interface clock\n", __func__);