[PATCH 1/4] media: rkisp1: Store IRQ lines

Tomi Valkeinen
2023-12-05T08:10:32Z

Store the IRQ lines used by the driver for easy access. These are needed
in future patches which fix IRQ race issues.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
.../media/platform/rockchip/rkisp1/rkisp1-common.h | 11 ++++++++++-
drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c | 19 ++++++++++++++-----
2 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index 960ab89c659b..ec28907d978e 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -62,6 +62,14 @@ struct regmap;
RKISP1_CIF_ISP_EXP_END | \
RKISP1_CIF_ISP_HIST_MEASURE_RDY)

+/* IRQ lines */
+enum rkisp1_irq_line {
+ RKISP1_IRQ_ISP = 0,
+ RKISP1_IRQ_MI,
+ RKISP1_IRQ_MIPI,
+ RKISP1_NUM_IRQS,
+};
+
/* enum for the resizer pads */
enum rkisp1_rsz_pad {
RKISP1_RSZ_PAD_SINK,
@@ -437,7 +445,6 @@ struct rkisp1_debug {
* struct rkisp1_device - ISP platform device
*
* @base_addr: base register address
- * @irq: the irq number
* @dev: a pointer to the struct device
* @clk_size: number of clocks
* @clks: array of clocks
@@ -457,6 +464,7 @@ struct rkisp1_debug {
* @stream_lock: serializes {start/stop}_streaming callbacks between the capture devices.
* @debug: debug params to be exposed on debugfs
* @info: version-specific ISP information
+ * @irqs: IRQ line numbers
*/
struct rkisp1_device {
void __iomem *base_addr;
@@ -479,6 +487,7 @@ struct rkisp1_device {
struct mutex stream_lock; /* serialize {start/stop}_streaming cb between capture devices */
struct rkisp1_debug debug;
const struct rkisp1_info *info;
+ int irqs[RKISP1_NUM_IRQS];
};

/*
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 2b9886fd0800..76f93614b4cf 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -115,6 +115,7 @@
struct rkisp1_isr_data {
const char *name;
irqreturn_t (*isr)(int irq, void *ctx);
+ u32 line_mask;
};

/* ----------------------------------------------------------------------------
@@ -465,9 +466,9 @@ static const char * const px30_isp_clks[] = {
};

static const struct rkisp1_isr_data px30_isp_isrs[] = {
- { "isp", rkisp1_isp_isr },
- { "mi", rkisp1_capture_isr },
- { "mipi", rkisp1_csi_isr },
+ { "isp", rkisp1_isp_isr, BIT(RKISP1_IRQ_ISP) },
+ { "mi", rkisp1_capture_isr, BIT(RKISP1_IRQ_MI) },
+ { "mipi", rkisp1_csi_isr, BIT(RKISP1_IRQ_MIPI) },
};

static const struct rkisp1_info px30_isp_info = {
@@ -488,7 +489,7 @@ static const char * const rk3399_isp_clks[] = {
};

static const struct rkisp1_isr_data rk3399_isp_isrs[] = {
- { NULL, rkisp1_isr },
+ { NULL, rkisp1_isr, BIT(RKISP1_IRQ_ISP) | BIT(RKISP1_IRQ_MI) | BIT(RKISP1_IRQ_MIPI) },
};

static const struct rkisp1_info rk3399_isp_info = {
@@ -509,7 +510,7 @@ static const char * const imx8mp_isp_clks[] = {
};

static const struct rkisp1_isr_data imx8mp_isp_isrs[] = {
- { NULL, rkisp1_isr },
+ { NULL, rkisp1_isr, BIT(RKISP1_IRQ_ISP) | BIT(RKISP1_IRQ_MI) | BIT(RKISP1_IRQ_MIPI) },
};

static const struct rkisp1_info imx8mp_isp_info = {
@@ -566,6 +567,9 @@ static int rkisp1_probe(struct platform_device *pdev)
if (IS_ERR(rkisp1->base_addr))
return PTR_ERR(rkisp1->base_addr);

+ for (unsigned int il = 0; il < RKISP1_NUM_IRQS; ++il)
+ rkisp1->irqs[il] = -1;
+
for (i = 0; i < info->isr_size; i++) {
irq = info->isrs[i].name
? platform_get_irq_byname(pdev, info->isrs[i].name)
@@ -573,6 +577,11 @@ static int rkisp1_probe(struct platform_device *pdev)
if (irq < 0)
return irq;

+ for (unsigned int il = 0; il < RKISP1_NUM_IRQS; ++il) {
+ if (info->isrs[i].line_mask & BIT(il))
+ rkisp1->irqs[il] = irq;
+ }
+
ret = devm_request_irq(dev, irq, info->isrs[i].isr, IRQF_SHARED,
dev_driver_string(dev), dev);
if (ret) {

--
2.34.1