diff options
| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2020-05-11 15:28:27 +0900 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-05-28 11:22:14 +0200 |
| commit | 804a65b3dfdd6d853364a835698870fb20f7a81a (patch) | |
| tree | eee0f8209d3fb4694d78e231d2a13b27e3e429c5 /drivers/mmc | |
| parent | 5d1f42e14b135773c0cc1d82e904c5b223783a9d (diff) | |
mmc: sdhci: use FIELD_GET/PREP for current capabilities bit masks
Use FIELD_GET and FIELD_PREP to get access to the register fields. Delete
the shift macros and use GENMASK() for the touched macros.
Note that, this has the side-effect of changing the constants to 64-bit on
64-bit platforms.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Link: https://lore.kernel.org/r/20200511062828.1791484-1-yamada.masahiro@socionext.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-esdhc-imx.c | 6 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 27 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 11 |
3 files changed, 19 insertions, 25 deletions
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 38cd83118082..9896e03fce71 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -419,9 +419,9 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg) if (unlikely(reg == SDHCI_MAX_CURRENT) && esdhc_is_usdhc(imx_data)) { val = 0; - val |= 0xFF << SDHCI_MAX_CURRENT_330_SHIFT; - val |= 0xFF << SDHCI_MAX_CURRENT_300_SHIFT; - val |= 0xFF << SDHCI_MAX_CURRENT_180_SHIFT; + val |= FIELD_PREP(SDHCI_MAX_CURRENT_330_MASK, 0xFF); + val |= FIELD_PREP(SDHCI_MAX_CURRENT_300_MASK, 0xFF); + val |= FIELD_PREP(SDHCI_MAX_CURRENT_180_MASK, 0xFF); } if (unlikely(reg == SDHCI_INT_STATUS)) { diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 95cc08c1fed9..9864e877e105 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -4486,35 +4486,32 @@ int sdhci_setup_host(struct sdhci_host *host) curr = min_t(u32, curr, SDHCI_MAX_CURRENT_LIMIT); max_current_caps = - (curr << SDHCI_MAX_CURRENT_330_SHIFT) | - (curr << SDHCI_MAX_CURRENT_300_SHIFT) | - (curr << SDHCI_MAX_CURRENT_180_SHIFT); + FIELD_PREP(SDHCI_MAX_CURRENT_330_MASK, curr) | + FIELD_PREP(SDHCI_MAX_CURRENT_300_MASK, curr) | + FIELD_PREP(SDHCI_MAX_CURRENT_180_MASK, curr); } } if (host->caps & SDHCI_CAN_VDD_330) { ocr_avail |= MMC_VDD_32_33 | MMC_VDD_33_34; - mmc->max_current_330 = ((max_current_caps & - SDHCI_MAX_CURRENT_330_MASK) >> - SDHCI_MAX_CURRENT_330_SHIFT) * - SDHCI_MAX_CURRENT_MULTIPLIER; + mmc->max_current_330 = FIELD_GET(SDHCI_MAX_CURRENT_330_MASK, + max_current_caps) * + SDHCI_MAX_CURRENT_MULTIPLIER; } if (host->caps & SDHCI_CAN_VDD_300) { ocr_avail |= MMC_VDD_29_30 | MMC_VDD_30_31; - mmc->max_current_300 = ((max_current_caps & - SDHCI_MAX_CURRENT_300_MASK) >> - SDHCI_MAX_CURRENT_300_SHIFT) * - SDHCI_MAX_CURRENT_MULTIPLIER; + mmc->max_current_300 = FIELD_GET(SDHCI_MAX_CURRENT_300_MASK, + max_current_caps) * + SDHCI_MAX_CURRENT_MULTIPLIER; } if (host->caps & SDHCI_CAN_VDD_180) { ocr_avail |= MMC_VDD_165_195; - mmc->max_current_180 = ((max_current_caps & - SDHCI_MAX_CURRENT_180_MASK) >> - SDHCI_MAX_CURRENT_180_SHIFT) * - SDHCI_MAX_CURRENT_MULTIPLIER; + mmc->max_current_180 = FIELD_GET(SDHCI_MAX_CURRENT_180_MASK, + max_current_caps) * + SDHCI_MAX_CURRENT_MULTIPLIER; } /* If OCR set by host, use it instead. */ diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 8d2a096fdfb1..257213a94d89 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -233,13 +233,10 @@ #define SDHCI_SUPPORT_HS400 0x80000000 /* Non-standard */ #define SDHCI_MAX_CURRENT 0x48 -#define SDHCI_MAX_CURRENT_LIMIT 0xFF -#define SDHCI_MAX_CURRENT_330_MASK 0x0000FF -#define SDHCI_MAX_CURRENT_330_SHIFT 0 -#define SDHCI_MAX_CURRENT_300_MASK 0x00FF00 -#define SDHCI_MAX_CURRENT_300_SHIFT 8 -#define SDHCI_MAX_CURRENT_180_MASK 0xFF0000 -#define SDHCI_MAX_CURRENT_180_SHIFT 16 +#define SDHCI_MAX_CURRENT_LIMIT GENMASK(7, 0) +#define SDHCI_MAX_CURRENT_330_MASK GENMASK(7, 0) +#define SDHCI_MAX_CURRENT_300_MASK GENMASK(15, 8) +#define SDHCI_MAX_CURRENT_180_MASK GENMASK(23, 16) #define SDHCI_MAX_CURRENT_MULTIPLIER 4 /* 4C-4F reserved for more max current */ |