From a2a03937d44eaa105a2d6e6b595b180e5d624774 Mon Sep 17 00:00:00 2001 From: Bryan O'Donoghue Date: Mon, 13 Jan 2025 10:01:21 +0530 Subject: [PATCH] media: qcom: camss: csiphy: Add an init callback to CSI PHY devices Add a nop init callback to CSIPHY devices, this callback is used to add some HW register offset and register configuration for specific platform, then different platform can reuse the same CSIPHY driver. Later changes will enumerate with enabling code. Signed-off-by: Bryan O'Donoghue Signed-off-by: Depeng Shao Reviewed-by: Vladimir Zapolskiy Signed-off-by: Hans Verkuil --- drivers/media/platform/qcom/camss/camss-csiphy-2ph-1-0.c | 6 ++++++ drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c | 6 ++++++ drivers/media/platform/qcom/camss/camss-csiphy.c | 4 ++++ drivers/media/platform/qcom/camss/camss-csiphy.h | 1 + 4 files changed, 17 insertions(+) diff --git a/drivers/media/platform/qcom/camss/camss-csiphy-2ph-1-0.c b/drivers/media/platform/qcom/camss/camss-csiphy-2ph-1-0.c index cd4a8c369234f..9d67e7fa6366a 100644 --- a/drivers/media/platform/qcom/camss/camss-csiphy-2ph-1-0.c +++ b/drivers/media/platform/qcom/camss/camss-csiphy-2ph-1-0.c @@ -180,6 +180,11 @@ static irqreturn_t csiphy_isr(int irq, void *dev) return IRQ_HANDLED; } +static int csiphy_init(struct csiphy_device *csiphy) +{ + return 0; +} + const struct csiphy_hw_ops csiphy_ops_2ph_1_0 = { .get_lane_mask = csiphy_get_lane_mask, .hw_version_read = csiphy_hw_version_read, @@ -187,4 +192,5 @@ const struct csiphy_hw_ops csiphy_ops_2ph_1_0 = { .lanes_enable = csiphy_lanes_enable, .lanes_disable = csiphy_lanes_disable, .isr = csiphy_isr, + .init = csiphy_init, }; diff --git a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c index 73e4c05a9dec0..b283df7634bb6 100644 --- a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c +++ b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c @@ -586,6 +586,11 @@ static void csiphy_lanes_disable(struct csiphy_device *csiphy, CSIPHY_3PH_CMN_CSI_COMMON_CTRLn(6)); } +static int csiphy_init(struct csiphy_device *csiphy) +{ + return 0; +} + const struct csiphy_hw_ops csiphy_ops_3ph_1_0 = { .get_lane_mask = csiphy_get_lane_mask, .hw_version_read = csiphy_hw_version_read, @@ -593,4 +598,5 @@ const struct csiphy_hw_ops csiphy_ops_3ph_1_0 = { .lanes_enable = csiphy_lanes_enable, .lanes_disable = csiphy_lanes_disable, .isr = csiphy_isr, + .init = csiphy_init, }; diff --git a/drivers/media/platform/qcom/camss/camss-csiphy.c b/drivers/media/platform/qcom/camss/camss-csiphy.c index 3791c2d8a6cf4..c053616558a73 100644 --- a/drivers/media/platform/qcom/camss/camss-csiphy.c +++ b/drivers/media/platform/qcom/camss/camss-csiphy.c @@ -594,6 +594,10 @@ int msm_csiphy_subdev_init(struct camss *camss, csiphy->cfg.combo_mode = 0; csiphy->res = &res->csiphy; + ret = csiphy->res->hw_ops->init(csiphy); + if (ret) + return ret; + /* Memory */ csiphy->base = devm_platform_ioremap_resource_byname(pdev, res->reg[0]); diff --git a/drivers/media/platform/qcom/camss/camss-csiphy.h b/drivers/media/platform/qcom/camss/camss-csiphy.h index 90cc3f9766432..49393dfd52153 100644 --- a/drivers/media/platform/qcom/camss/camss-csiphy.h +++ b/drivers/media/platform/qcom/camss/camss-csiphy.h @@ -77,6 +77,7 @@ struct csiphy_hw_ops { void (*lanes_disable)(struct csiphy_device *csiphy, struct csiphy_config *cfg); irqreturn_t (*isr)(int irq, void *dev); + int (*init)(struct csiphy_device *csiphy); }; struct csiphy_subdev_resources { -- 2.50.1