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hwmon: qti_amoled_ecm: add debug log for nvmem writes

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Add a wrapper function ecm_nvmem_device_write() which can log
the nvmem writes. This is useful for debugging.

Change-Id: Icc4ee6ff50b46f92e0169660e3400d80f7d4da37
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>
This commit is contained in:
Subbaraman Narayanamurthy 2020-09-09 20:18:12 -07:00 committed by David Collins
parent d5109e4d3d
commit ad61c83861
1 changed files with 20 additions and 7 deletions
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27
drivers/hwmon/qti_amoled_ecm.c
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@ -186,12 +186,25 @@ static struct amoled_ecm_sdam_config ecm_reset_config[] = {
{ ECM_WRITE_TO_SDAM, 0x03 }
};
static int ecm_nvmem_device_write(struct nvmem_device *nvmem,
unsigned int offset,
size_t bytes, void *buf)
{
size_t i;
u8 *ptr = buf;
for (i = 0; i < bytes; i++)
pr_debug("Wrote %#x to %#x\n", *ptr++, offset + i);
return nvmem_device_write(nvmem, offset, bytes, buf);
}
static int ecm_reset_sdam_config(struct amoled_ecm *ecm)
{
int rc, i;
for (i = 0; i < ARRAY_SIZE(ecm_reset_config); i++) {
rc = nvmem_device_write(ecm->sdam[0].nvmem,
rc = ecm_nvmem_device_write(ecm->sdam[0].nvmem,
ecm_reset_config[i].reg,
1, &ecm_reset_config[i].reset_val);
if (rc < 0) {
@ -212,7 +225,7 @@ static int amoled_ecm_enable(struct amoled_ecm *ecm)
int rc;
if (data->frames) {
rc = nvmem_device_write(ecm->sdam[0].nvmem,
rc = ecm_nvmem_device_write(ecm->sdam[0].nvmem,
ECM_N_ESWIRE_COUNT_LSB, 2, &data->frames);
if (rc < 0) {
pr_err("Failed to write swire count to SDAM, rc=%d\n",
@ -241,7 +254,7 @@ static int amoled_ecm_enable(struct amoled_ecm *ecm)
return rc;
}
rc = nvmem_device_write(ecm->sdam[0].nvmem, ECM_MODE, 1,
rc = ecm_nvmem_device_write(ecm->sdam[0].nvmem, ECM_MODE, 1,
&data->mode);
if (rc < 0) {
pr_err("Failed to write ECM mode to SDAM, rc=%d\n", rc);
@ -286,7 +299,7 @@ static int amoled_ecm_disable(struct amoled_ecm *ecm)
return rc;
}
rc = nvmem_device_write(ecm->sdam[0].nvmem, ECM_AVERAGE_LSB, 2,
rc = ecm_nvmem_device_write(ecm->sdam[0].nvmem, ECM_AVERAGE_LSB, 2,
&ecm->data.avg_current);
if (rc < 0) {
pr_err("Failed to write ECM average to SDAM, rc=%d\n", rc);
@ -587,7 +600,7 @@ static irqreturn_t sdam_full_irq_handler(int irq, void *_ecm)
}
overwrite &= ~(OVERWRITE_SDAM0_DATA << sdam_num);
rc = nvmem_device_write(ecm->sdam[0].nvmem, ECM_WRITE_TO_SDAM,
rc = ecm_nvmem_device_write(ecm->sdam[0].nvmem, ECM_WRITE_TO_SDAM,
1, &overwrite);
if (rc < 0) {
pr_err("Failed to write ECM_WRITE_TO_SDAM to SDAM, rc=%d\n",
@ -622,7 +635,7 @@ static irqreturn_t sdam_full_irq_handler(int irq, void *_ecm)
}
overwrite |= (OVERWRITE_SDAM0_DATA << sdam_num);
rc = nvmem_device_write(ecm->sdam[0].nvmem, ECM_WRITE_TO_SDAM,
rc = ecm_nvmem_device_write(ecm->sdam[0].nvmem, ECM_WRITE_TO_SDAM,
1, &overwrite);
if (rc < 0) {
pr_err("Failed to write ECM_WRITE_TO_SDAM to SDAM, rc=%d\n",
@ -641,7 +654,7 @@ static irqreturn_t sdam_full_irq_handler(int irq, void *_ecm)
data->num_m_samples++;
buf[0] = (ECM_SDAM0_FULL << sdam_num);
rc = nvmem_device_write(ecm->sdam[0].nvmem, ECM_STATUS_CLR, 1,
rc = ecm_nvmem_device_write(ecm->sdam[0].nvmem, ECM_STATUS_CLR, 1,
&buf[0]);
if (rc < 0) {
pr_err("Failed to clear interrupt status in SDAM, rc=%d\n",