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msm: ipa3: Changes to control the IPA BW vote using debugfs

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Changes to control the IPA BW vote persistent using debugfs.

Change-Id: Ie1edf294558a61af065f3fddec410808dc1abdd5
Signed-off-by: Ashok Vuyyuru <avuyyuru@codeaurora.org>
This commit is contained in:
Ashok Vuyyuru 2020-11-17 00:43:34 +05:30
parent ab56bd6371
commit 0d291ba235
1 changed files with 47 additions and 0 deletions
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47
drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c
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@ -430,6 +430,49 @@ static ssize_t ipa3_read_ep_reg(struct file *file, char __user *ubuf,
return size;
}
static ssize_t ipa3_set_clk_index(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
s8 option = 0;
int ret;
uint32_t bw_idx = 0;
ret = kstrtos8_from_user(buf, count, 0, &option);
if (ret)
return ret;
switch (option) {
case 0:
bw_idx = 0;
break;
case 1:
bw_idx = 1;
break;
case 2:
bw_idx = 2;
break;
case 3:
bw_idx = 3;
break;
case 4:
bw_idx = 4;
break;
default:
pr_err("Not support this vote (%d)\n", option);
return -EFAULT;
}
pr_info("Make sure some client connected before scaling the BW\n");
ipa3_ctx->enable_clock_scaling = 1;
if (ipa3_set_clock_plan_from_pm(bw_idx)) {
IPAERR("Failed to vote for bus BW (%u)\n", bw_idx);
return -EFAULT;
}
ipa3_ctx->enable_clock_scaling = 0;
IPAERR("Clock scaling is done sucessful\n");
return count;
}
static ssize_t ipa3_write_keep_awake(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
@ -2770,6 +2813,10 @@ static const struct ipa3_debugfs_file debugfs_files[] = {
.read = ipa3_read_keep_awake,
.write = ipa3_write_keep_awake,
}
}, {
"set_clk_idx", IPA_READ_WRITE_MODE, NULL, {
.write = ipa3_set_clk_index,
}
}, {
"holb", IPA_WRITE_ONLY_MODE, NULL, {
.write = ipa3_write_ep_holb,