From: Arun Mankuzhi <arun.m@xxxxxxxxxxx>
>From MFC V8, the MFC wakeup sequence has changed.
MFC wakeup command has to be sent after the host receives
firmware load complete status from risc.
Signed-off-by: Arun Mankuzhi <arun.m@xxxxxxxxxxx>
Signed-off-by: Kiran AVND <avnd.kiran@xxxxxxxxxxx>
---
drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c | 78 +++++++++++++++++++-----
1 files changed, 61 insertions(+), 17 deletions(-)
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c b/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
index 24d5252..8531c72 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c
@@ -352,6 +352,58 @@ 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;
@@ -364,6 +416,7 @@ 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");
@@ -372,25 +425,16 @@ 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) {
--
1.7.3.rc2
--
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