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[media] s5p-mfc: modify mfc wakeup sequence for V8

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MFC wakeup command has to be sent after the host receives
firmware load complete status from risc.

Signed-off-by: Arun Mankuzhi <arun.m@samsung.com>
Signed-off-by: Kiran AVND <avnd.kiran@samsung.com>
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Arun Mankuzhi 2014-10-21 08:07:02 -03:00 committed by Mauro Carvalho Chehab
parent 9a7bc6b0c4
commit 773e635266
1 changed files with 61 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

78
drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
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@ -353,6 +353,58 @@ int s5p_mfc_sleep(struct s5p_mfc_dev *dev)
return ret;
}
static int s5p_mfc_v8_wait_wakeup(struct s5p_mfc_dev *dev)
{
int ret;
/* Release reset signal to the RISC */
dev->risc_on = 1;
mfc_write(dev, 0x1, S5P_FIMV_RISC_ON_V6);
if (s5p_mfc_wait_for_done_dev(dev, S5P_MFC_R2H_CMD_FW_STATUS_RET)) {
mfc_err("Failed to reset MFCV8\n");
return -EIO;
}
mfc_debug(2, "Write command to wakeup MFCV8\n");
ret = s5p_mfc_hw_call(dev->mfc_cmds, wakeup_cmd, dev);
if (ret) {
mfc_err("Failed to send command to MFCV8 - timeout\n");
return ret;
}
if (s5p_mfc_wait_for_done_dev(dev, S5P_MFC_R2H_CMD_WAKEUP_RET)) {
mfc_err("Failed to wakeup MFC\n");
return -EIO;
}
return ret;
}
static int s5p_mfc_wait_wakeup(struct s5p_mfc_dev *dev)
{
int ret;
/* Send MFC wakeup command */
ret = s5p_mfc_hw_call(dev->mfc_cmds, wakeup_cmd, dev);
if (ret) {
mfc_err("Failed to send command to MFC - timeout\n");
return ret;
}
/* Release reset signal to the RISC */
if (IS_MFCV6_PLUS(dev)) {
dev->risc_on = 1;
mfc_write(dev, 0x1, S5P_FIMV_RISC_ON_V6);
} else {
mfc_write(dev, 0x3ff, S5P_FIMV_SW_RESET);
}
if (s5p_mfc_wait_for_done_dev(dev, S5P_MFC_R2H_CMD_WAKEUP_RET)) {
mfc_err("Failed to wakeup MFC\n");
return -EIO;
}
return ret;
}
int s5p_mfc_wakeup(struct s5p_mfc_dev *dev)
{
int ret;
@ -365,6 +417,7 @@ int s5p_mfc_wakeup(struct s5p_mfc_dev *dev)
ret = s5p_mfc_reset(dev);
if (ret) {
mfc_err("Failed to reset MFC - timeout\n");
s5p_mfc_clock_off();
return ret;
}
mfc_debug(2, "Done MFC reset..\n");
@ -373,25 +426,16 @@ int s5p_mfc_wakeup(struct s5p_mfc_dev *dev)
/* 2. Initialize registers of channel I/F */
s5p_mfc_clear_cmds(dev);
s5p_mfc_clean_dev_int_flags(dev);
/* 3. Initialize firmware */
ret = s5p_mfc_hw_call(dev->mfc_cmds, wakeup_cmd, dev);
if (ret) {
mfc_err("Failed to send command to MFC - timeout\n");
return ret;
}
/* 4. Release reset signal to the RISC */
if (IS_MFCV6_PLUS(dev)) {
dev->risc_on = 1;
mfc_write(dev, 0x1, S5P_FIMV_RISC_ON_V6);
}
/* 3. Send MFC wakeup command and wait for completion*/
if (IS_MFCV8(dev))
ret = s5p_mfc_v8_wait_wakeup(dev);
else
mfc_write(dev, 0x3ff, S5P_FIMV_SW_RESET);
mfc_debug(2, "Ok, now will write a command to wakeup the system\n");
if (s5p_mfc_wait_for_done_dev(dev, S5P_MFC_R2H_CMD_WAKEUP_RET)) {
mfc_err("Failed to load firmware\n");
return -EIO;
}
ret = s5p_mfc_wait_wakeup(dev);
s5p_mfc_clock_off();
if (ret)
return ret;
dev->int_cond = 0;
if (dev->int_err != 0 || dev->int_type !=
S5P_MFC_R2H_CMD_WAKEUP_RET) {