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path: root/drivers/gpu/drm/i915/dvo_sil164.c
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Diffstat (limited to 'drivers/gpu/drm/i915/dvo_sil164.c')
-rw-r--r--drivers/gpu/drm/i915/dvo_sil164.c109
1 files changed, 43 insertions, 66 deletions
diff --git a/drivers/gpu/drm/i915/dvo_sil164.c b/drivers/gpu/drm/i915/dvo_sil164.c
index 033a4bb070b..fa011496707 100644
--- a/drivers/gpu/drm/i915/dvo_sil164.c
+++ b/drivers/gpu/drm/i915/dvo_sil164.c
@@ -58,17 +58,9 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#define SIL164_REGC 0x0c
-struct sil164_save_rec {
- uint8_t reg8;
- uint8_t reg9;
- uint8_t regc;
-};
-
struct sil164_priv {
//I2CDevRec d;
bool quiet;
- struct sil164_save_rec save_regs;
- struct sil164_save_rec mode_regs;
};
#define SILPTR(d) ((SIL164Ptr)(d->DriverPrivate.ptr))
@@ -76,19 +68,19 @@ struct sil164_priv {
static bool sil164_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
{
struct sil164_priv *sil = dvo->dev_priv;
- struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
+ struct i2c_adapter *adapter = dvo->i2c_bus;
u8 out_buf[2];
u8 in_buf[2];
struct i2c_msg msgs[] = {
{
- .addr = i2cbus->slave_addr,
+ .addr = dvo->slave_addr,
.flags = 0,
.len = 1,
.buf = out_buf,
},
{
- .addr = i2cbus->slave_addr,
+ .addr = dvo->slave_addr,
.flags = I2C_M_RD,
.len = 1,
.buf = in_buf,
@@ -98,25 +90,25 @@ static bool sil164_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
out_buf[0] = addr;
out_buf[1] = 0;
- if (i2c_transfer(&i2cbus->adapter, msgs, 2) == 2) {
+ if (i2c_transfer(adapter, msgs, 2) == 2) {
*ch = in_buf[0];
return true;
- };
+ }
if (!sil->quiet) {
- DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n",
- addr, i2cbus->adapter.name, i2cbus->slave_addr);
+ DRM_DEBUG_KMS("Unable to read register 0x%02x from %s:%02x.\n",
+ addr, adapter->name, dvo->slave_addr);
}
return false;
}
static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
{
- struct sil164_priv *sil= dvo->dev_priv;
- struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
+ struct sil164_priv *sil = dvo->dev_priv;
+ struct i2c_adapter *adapter = dvo->i2c_bus;
uint8_t out_buf[2];
struct i2c_msg msg = {
- .addr = i2cbus->slave_addr,
+ .addr = dvo->slave_addr,
.flags = 0,
.len = 2,
.buf = out_buf,
@@ -125,12 +117,12 @@ static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
out_buf[0] = addr;
out_buf[1] = ch;
- if (i2c_transfer(&i2cbus->adapter, &msg, 1) == 1)
+ if (i2c_transfer(adapter, &msg, 1) == 1)
return true;
if (!sil->quiet) {
- DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n",
- addr, i2cbus->adapter.name, i2cbus->slave_addr);
+ DRM_DEBUG_KMS("Unable to write register 0x%02x to %s:%d.\n",
+ addr, adapter->name, dvo->slave_addr);
}
return false;
@@ -138,7 +130,7 @@ static bool sil164_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
/* Silicon Image 164 driver for chip on i2c bus */
static bool sil164_init(struct intel_dvo_device *dvo,
- struct intel_i2c_chan *i2cbus)
+ struct i2c_adapter *adapter)
{
/* this will detect the SIL164 chip on the specified i2c bus */
struct sil164_priv *sil;
@@ -148,8 +140,7 @@ static bool sil164_init(struct intel_dvo_device *dvo,
if (sil == NULL)
return false;
- dvo->i2c_bus = i2cbus;
- dvo->i2c_bus->slave_addr = dvo->slave_addr;
+ dvo->i2c_bus = adapter;
dvo->dev_priv = sil;
sil->quiet = true;
@@ -157,8 +148,8 @@ static bool sil164_init(struct intel_dvo_device *dvo,
goto out;
if (ch != (SIL164_VID & 0xff)) {
- DRM_DEBUG("sil164 not detected got %d: from %s Slave %d.\n",
- ch, i2cbus->adapter.name, i2cbus->slave_addr);
+ DRM_DEBUG_KMS("sil164 not detected got %d: from %s Slave %d.\n",
+ ch, adapter->name, dvo->slave_addr);
goto out;
}
@@ -166,13 +157,13 @@ static bool sil164_init(struct intel_dvo_device *dvo,
goto out;
if (ch != (SIL164_DID & 0xff)) {
- DRM_DEBUG("sil164 not detected got %d: from %s Slave %d.\n",
- ch, i2cbus->adapter.name, i2cbus->slave_addr);
+ DRM_DEBUG_KMS("sil164 not detected got %d: from %s Slave %d.\n",
+ ch, adapter->name, dvo->slave_addr);
goto out;
}
sil->quiet = false;
- DRM_DEBUG("init sil164 dvo controller successfully!\n");
+ DRM_DEBUG_KMS("init sil164 dvo controller successfully!\n");
return true;
out:
@@ -217,7 +208,7 @@ static void sil164_mode_set(struct intel_dvo_device *dvo,
}
/* set the SIL164 power state */
-static void sil164_dpms(struct intel_dvo_device *dvo, int mode)
+static void sil164_dpms(struct intel_dvo_device *dvo, bool enable)
{
int ret;
unsigned char ch;
@@ -226,7 +217,7 @@ static void sil164_dpms(struct intel_dvo_device *dvo, int mode)
if (ret == false)
return;
- if (mode == DRM_MODE_DPMS_ON)
+ if (enable)
ch |= SIL164_8_PD;
else
ch &= ~SIL164_8_PD;
@@ -235,48 +226,35 @@ static void sil164_dpms(struct intel_dvo_device *dvo, int mode)
return;
}
+static bool sil164_get_hw_state(struct intel_dvo_device *dvo)
+{
+ int ret;
+ unsigned char ch;
+
+ ret = sil164_readb(dvo, SIL164_REG8, &ch);
+ if (ret == false)
+ return false;
+
+ if (ch & SIL164_8_PD)
+ return true;
+ else
+ return false;
+}
+
static void sil164_dump_regs(struct intel_dvo_device *dvo)
{
uint8_t val;
sil164_readb(dvo, SIL164_FREQ_LO, &val);
- DRM_DEBUG("SIL164_FREQ_LO: 0x%02x\n", val);
+ DRM_DEBUG_KMS("SIL164_FREQ_LO: 0x%02x\n", val);
sil164_readb(dvo, SIL164_FREQ_HI, &val);
- DRM_DEBUG("SIL164_FREQ_HI: 0x%02x\n", val);
+ DRM_DEBUG_KMS("SIL164_FREQ_HI: 0x%02x\n", val);
sil164_readb(dvo, SIL164_REG8, &val);
- DRM_DEBUG("SIL164_REG8: 0x%02x\n", val);
+ DRM_DEBUG_KMS("SIL164_REG8: 0x%02x\n", val);
sil164_readb(dvo, SIL164_REG9, &val);
- DRM_DEBUG("SIL164_REG9: 0x%02x\n", val);
+ DRM_DEBUG_KMS("SIL164_REG9: 0x%02x\n", val);
sil164_readb(dvo, SIL164_REGC, &val);
- DRM_DEBUG("SIL164_REGC: 0x%02x\n", val);
-}
-
-static void sil164_save(struct intel_dvo_device *dvo)
-{
- struct sil164_priv *sil= dvo->dev_priv;
-
- if (!sil164_readb(dvo, SIL164_REG8, &sil->save_regs.reg8))
- return;
-
- if (!sil164_readb(dvo, SIL164_REG9, &sil->save_regs.reg9))
- return;
-
- if (!sil164_readb(dvo, SIL164_REGC, &sil->save_regs.regc))
- return;
-
- return;
-}
-
-static void sil164_restore(struct intel_dvo_device *dvo)
-{
- struct sil164_priv *sil = dvo->dev_priv;
-
- /* Restore it powered down initially */
- sil164_writeb(dvo, SIL164_REG8, sil->save_regs.reg8 & ~0x1);
-
- sil164_writeb(dvo, SIL164_REG9, sil->save_regs.reg9);
- sil164_writeb(dvo, SIL164_REGC, sil->save_regs.regc);
- sil164_writeb(dvo, SIL164_REG8, sil->save_regs.reg8);
+ DRM_DEBUG_KMS("SIL164_REGC: 0x%02x\n", val);
}
static void sil164_destroy(struct intel_dvo_device *dvo)
@@ -295,8 +273,7 @@ struct intel_dvo_dev_ops sil164_ops = {
.mode_valid = sil164_mode_valid,
.mode_set = sil164_mode_set,
.dpms = sil164_dpms,
+ .get_hw_state = sil164_get_hw_state,
.dump_regs = sil164_dump_regs,
- .save = sil164_save,
- .restore = sil164_restore,
.destroy = sil164_destroy,
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 23:00:00 +0000