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Message-ID: <c82a0b17-d6fe-39bf-27b3-e0658994a834@intel.com>
Date: Wed, 18 Oct 2023 10:04:02 +0200
From: Karolina Stolarek <karolina.stolarek@...el.com>
To: kenechukwu maduechesi <maduechesik@...il.com>
CC: <outreachy@...ts.linux.dev>, <shreeya.patel23498@...il.com>,
"Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
<linux-staging@...ts.linux.dev>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] staging: rts5208: Replace delay function.
On 18.10.2023 03:03, kenechukwu maduechesi wrote:
> Replace udelay() with usleep_range() for more precise delay handling.
>
> Reported by checkpatch:
>
> CHECK: usleep_range is preferred over udelay
Have you tried to compile your patch? This is something you should do
before sending it to the mailing list.
All the best,
Karolina
>
> Signed-off-by: kenechukwu maduechesi <maduechesik@...il.com>
> ---
> drivers/staging/rts5208/sd.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/staging/rts5208/sd.c b/drivers/staging/rts5208/sd.c
> index 74c4f476b3a4..059f99b0a727 100644
> --- a/drivers/staging/rts5208/sd.c
> +++ b/drivers/staging/rts5208/sd.c
> @@ -865,7 +865,7 @@ static int sd_change_phase(struct rtsx_chip *chip, u8 sample_point, u8 tune_dir)
> PHASE_CHANGE);
> if (retval)
> return retval;
> - udelay(50);
> + usleep_range(50);
> retval = rtsx_write_register(chip, SD_VP_CTL, 0xFF,
> PHASE_CHANGE |
> PHASE_NOT_RESET |
> @@ -877,14 +877,14 @@ static int sd_change_phase(struct rtsx_chip *chip, u8 sample_point, u8 tune_dir)
> CHANGE_CLK, CHANGE_CLK);
> if (retval)
> return retval;
> - udelay(50);
> + usleep_range(50);
> retval = rtsx_write_register(chip, SD_VP_CTL, 0xFF,
> PHASE_NOT_RESET |
> sample_point);
> if (retval)
> return retval;
> }
> - udelay(100);
> + usleep_range(100);
>
> rtsx_init_cmd(chip);
> rtsx_add_cmd(chip, WRITE_REG_CMD, SD_DCMPS_CTL, DCMPS_CHANGE,
> @@ -918,7 +918,7 @@ static int sd_change_phase(struct rtsx_chip *chip, u8 sample_point, u8 tune_dir)
> return retval;
> }
>
> - udelay(50);
> + usleep_range(50);
> }
>
> retval = rtsx_write_register(chip, SD_CFG1, SD_ASYNC_FIFO_NOT_RST, 0);
> @@ -1416,7 +1416,7 @@ static int sd_wait_data_idle(struct rtsx_chip *chip)
> retval = STATUS_SUCCESS;
> break;
> }
> - udelay(100);
> + usleep_range(100);
> }
> dev_dbg(rtsx_dev(chip), "SD_DATA_STATE: 0x%02x\n", val);
>
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