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Subject[PATCH v3 076/105] drm/vc4: hdmi: Pass vc4_hdmi to CEC code
Date
Our CEC code also retrieves the associated vc4_hdmi by setting the
vc4_dev pointer as its private data, and then dereferences its vc4_hdmi
pointer.

In order to eventually get rid of that pointer, we can simply pass the
vc4_hdmi pointer directly.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
drivers/gpu/drm/vc4/vc4_hdmi.c | 24 +++++++++---------------
1 file changed, 9 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 4a28e0c0c814..892108f16802 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -1032,8 +1032,7 @@ static int vc4_hdmi_audio_init(struct vc4_hdmi *vc4_hdmi)
#ifdef CONFIG_DRM_VC4_HDMI_CEC
static irqreturn_t vc4_cec_irq_handler_thread(int irq, void *priv)
{
- struct vc4_dev *vc4 = priv;
- struct vc4_hdmi *vc4_hdmi = vc4->hdmi;
+ struct vc4_hdmi *vc4_hdmi = priv;

if (vc4_hdmi->cec_irq_was_rx) {
if (vc4_hdmi->cec_rx_msg.len)
@@ -1053,9 +1052,8 @@ static irqreturn_t vc4_cec_irq_handler_thread(int irq, void *priv)
return IRQ_HANDLED;
}

-static void vc4_cec_read_msg(struct vc4_dev *vc4, u32 cntrl1)
+static void vc4_cec_read_msg(struct vc4_hdmi *vc4_hdmi, u32 cntrl1)
{
- struct vc4_hdmi *vc4_hdmi = vc4->hdmi;
struct cec_msg *msg = &vc4_hdmi->cec_rx_msg;
unsigned int i;

@@ -1073,8 +1071,7 @@ static void vc4_cec_read_msg(struct vc4_dev *vc4, u32 cntrl1)

static irqreturn_t vc4_cec_irq_handler(int irq, void *priv)
{
- struct vc4_dev *vc4 = priv;
- struct vc4_hdmi *vc4_hdmi = vc4->hdmi;
+ struct vc4_hdmi *vc4_hdmi = priv;
u32 stat = HDMI_READ(VC4_HDMI_CPU_STATUS);
u32 cntrl1, cntrl5;

@@ -1085,7 +1082,7 @@ static irqreturn_t vc4_cec_irq_handler(int irq, void *priv)
cntrl5 = HDMI_READ(VC4_HDMI_CEC_CNTRL_5);
vc4_hdmi->cec_irq_was_rx = cntrl5 & VC4_HDMI_CEC_RX_CEC_INT;
if (vc4_hdmi->cec_irq_was_rx) {
- vc4_cec_read_msg(vc4, cntrl1);
+ vc4_cec_read_msg(vc4_hdmi, cntrl1);
cntrl1 |= VC4_HDMI_CEC_CLEAR_RECEIVE_OFF;
HDMI_WRITE(VC4_HDMI_CEC_CNTRL_1, cntrl1);
cntrl1 &= ~VC4_HDMI_CEC_CLEAR_RECEIVE_OFF;
@@ -1101,8 +1098,7 @@ static irqreturn_t vc4_cec_irq_handler(int irq, void *priv)

static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable)
{
- struct vc4_dev *vc4 = cec_get_drvdata(adap);
- struct vc4_hdmi *vc4_hdmi = vc4->hdmi;
+ struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap);
/* clock period in microseconds */
const u32 usecs = 1000000 / CEC_CLOCK_FREQ;
u32 val = HDMI_READ(VC4_HDMI_CEC_CNTRL_5);
@@ -1145,8 +1141,7 @@ static int vc4_hdmi_cec_adap_enable(struct cec_adapter *adap, bool enable)

static int vc4_hdmi_cec_adap_log_addr(struct cec_adapter *adap, u8 log_addr)
{
- struct vc4_dev *vc4 = cec_get_drvdata(adap);
- struct vc4_hdmi *vc4_hdmi = vc4->hdmi;
+ struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap);

HDMI_WRITE(VC4_HDMI_CEC_CNTRL_1,
(HDMI_READ(VC4_HDMI_CEC_CNTRL_1) & ~VC4_HDMI_CEC_ADDR_MASK) |
@@ -1157,8 +1152,7 @@ static int vc4_hdmi_cec_adap_log_addr(struct cec_adapter *adap, u8 log_addr)
static int vc4_hdmi_cec_adap_transmit(struct cec_adapter *adap, u8 attempts,
u32 signal_free_time, struct cec_msg *msg)
{
- struct vc4_dev *vc4 = cec_get_drvdata(adap);
- struct vc4_hdmi *vc4_hdmi = vc4->hdmi;
+ struct vc4_hdmi *vc4_hdmi = cec_get_drvdata(adap);
u32 val;
unsigned int i;

@@ -1303,7 +1297,7 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data)

#ifdef CONFIG_DRM_VC4_HDMI_CEC
vc4_hdmi->cec_adap = cec_allocate_adapter(&vc4_hdmi_cec_adap_ops,
- vc4, "vc4",
+ vc4_hdmi, "vc4",
CEC_CAP_DEFAULTS |
CEC_CAP_CONNECTOR_INFO, 1);
ret = PTR_ERR_OR_ZERO(vc4_hdmi->cec_adap);
@@ -1327,7 +1321,7 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data)
ret = devm_request_threaded_irq(dev, platform_get_irq(pdev, 0),
vc4_cec_irq_handler,
vc4_cec_irq_handler_thread, 0,
- "vc4 hdmi cec", vc4);
+ "vc4 hdmi cec", vc4_hdmi);
if (ret)
goto err_delete_cec_adap;
ret = cec_register_adapter(vc4_hdmi->cec_adap, dev);
--
git-series 0.9.1
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