On 2024/8/27 21:50, Krzysztof Kozlowski wrote:
> On 27/08/2024 13:46, Jinjie Ruan wrote:
>> Use the dev_err_probe() helper to simplify error handling during probe.
>> This also handle scenario, when EDEFER is returned and useless error
>> is printed.
>
> ? Sorry, this cannot happen. Please point to below code which can defer.
>
Thank you!
This is not referring to a specific one, but rather the benefits it
offers，simplify code is the main purpose, if necessary, it will be
removed in next version.
>>
>> Signed-off-by: Jinjie Ruan <ruanjin...@huawei.com>
>> ---
>> drivers/soc/fsl/qe/tsa.c | 62 +++++++++++++++-------------------------
>> 1 file changed, 23 insertions(+), 39 deletions(-)
>>
>> diff --git a/drivers/soc/fsl/qe/tsa.c b/drivers/soc/fsl/qe/tsa.c
>> index 7fa399b7a47c..fc37d23b746d 100644
>> --- a/drivers/soc/fsl/qe/tsa.c
>> +++ b/drivers/soc/fsl/qe/tsa.c
>> @@ -453,10 +453,8 @@ static int tsa_of_parse_tdms(struct tsa *tsa, struct
>> device_node *np)
>>
>> for_each_available_child_of_node_scoped(np, tdm_np) {
>> ret = of_property_read_u32(tdm_np, "reg", &tdm_id);
>> - if (ret) {
>> - dev_err(tsa->dev, "%pOF: failed to read reg\n", tdm_np);
>> - return ret;
>> - }
>> + if (ret)
>> + return dev_err_probe(tsa->dev, ret, "%pOF: failed to
>> read reg\n", tdm_np);
>> switch (tdm_id) {
>> case 0:
>> tsa->tdms |= BIT(TSA_TDMA);
>> @@ -465,18 +463,15 @@ static int tsa_of_parse_tdms(struct tsa *tsa, struct
>> device_node *np)
>> tsa->tdms |= BIT(TSA_TDMB);
>> break;
>> default:
>> - dev_err(tsa->dev, "%pOF: Invalid tdm_id (%u)\n", tdm_np,
>> - tdm_id);
>> - return -EINVAL;
>> + return dev_err_probe(tsa->dev, -EINVAL, "%pOF: Invalid
>> tdm_id (%u)\n",
>> + tdm_np, tdm_id);
>> }
>> }
>>
>> for_each_available_child_of_node_scoped(np, tdm_np) {
>> ret = of_property_read_u32(tdm_np, "reg", &tdm_id);
>> - if (ret) {
>> - dev_err(tsa->dev, "%pOF: failed to read reg\n", tdm_np);
>> - return ret;
>> - }
>> + if (ret)
>> + return dev_err_probe(tsa->dev, ret, "%pOF: failed to
>> read reg\n", tdm_np);
>>
>> tdm = &tsa->tdm[tdm_id];
>> tdm->simode_tdm = TSA_SIMODE_TDM_SDM_NORM;
>> @@ -484,35 +479,26 @@ static int tsa_of_parse_tdms(struct tsa *tsa, struct
>> device_node *np)
>> val = 0;
>> ret = of_property_read_u32(tdm_np,
>> "fsl,rx-frame-sync-delay-bits",
>> &val);
>> - if (ret && ret != -EINVAL) {
>> - dev_err(tsa->dev,
>> - "%pOF: failed to read
>> fsl,rx-frame-sync-delay-bits\n",
>> - tdm_np);
>> - return ret;
>> - }
>> - if (val > 3) {
>> - dev_err(tsa->dev,
>> - "%pOF: Invalid fsl,rx-frame-sync-delay-bits
>> (%u)\n",
>> - tdm_np, val);
>> - return -EINVAL;
>> - }
>> + if (ret && ret != -EINVAL)
>> + return dev_err_probe(tsa->dev, ret,
>> + "%pOF: failed to read
>> fsl,rx-frame-sync-delay-bits\n",
>> + tdm_np);
>> + if (val > 3)
>> + return dev_err_probe(tsa->dev, -EINVAL,
>> + "%pOF: Invalid
>> fsl,rx-frame-sync-delay-bits (%u)\n",
>> + tdm_np, val);
>> tdm->simode_tdm |= TSA_SIMODE_TDM_RFSD(val);
>>
>> val = 0;
>> ret = of_property_read_u32(tdm_np,
>> "fsl,tx-frame-sync-delay-bits",
>> &val);
>> - if (ret && ret != -EINVAL) {
>> - dev_err(tsa->dev,
>> - "%pOF: failed to read
>> fsl,tx-frame-sync-delay-bits\n",
>> - tdm_np);
>> - return ret;
>> - }
>> - if (val > 3) {
>> - dev_err(tsa->dev,
>> - "%pOF: Invalid fsl,tx-frame-sync-delay-bits
>> (%u)\n",
>> - tdm_np, val);
>> - return -EINVAL;
>> - }
>> + if (ret && ret != -EINVAL)
>> + return dev_err_probe(tsa->dev, ret,
>> + "%pOF: failed to read
>> fsl,tx-frame-sync-delay-bits\n", tdm_np);
>> + if (val > 3)
>> + return dev_err_probe(tsa->dev, -EINVAL,
>> + "%pOF: Invalid
>> fsl,tx-frame-sync-delay-bits (%u)\n",
>> + tdm_np, val);
>> tdm->simode_tdm |= TSA_SIMODE_TDM_TFSD(val);
>>
>> if (of_property_read_bool(tdm_np, "fsl,common-rxtx-pins"))
>> @@ -645,10 +631,8 @@ static int tsa_probe(struct platform_device *pdev)
>> return PTR_ERR(tsa->si_regs);
>>
>> res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "si_ram");
>> - if (!res) {
>> - dev_err(tsa->dev, "si_ram resource missing\n");
>> - return -EINVAL;
>> - }
>> + if (!res)
>> + return dev_err_probe(tsa->dev, -EINVAL, "si_ram resource
>> missing\n");
>> tsa->si_ram_sz = resource_size(res);
>> tsa->si_ram = devm_ioremap_resource(&pdev->dev, res);
>> if (IS_ERR(tsa->si_ram))
>
> Best regards,
> Krzysztof
>
