| Message ID | 1567669089-88693-5-git-send-email-zhouyanjie@zoho.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/4] MMC: Ingenic: Adjust the macro definition name. | expand |
On Thu, 5 Sep 2019 at 09:40, Zhou Yanjie <zhouyanjie@zoho.com> wrote: > > 1.add support for probing mmc driver on the JZ4760 Soc from Ingenic. > 2.add support for Low Power Mode of Ingenic's MMC/SD Controller. Normally we try to make "one" change per patch, unless there are some good reasons not to. In this case, it seems like you should rather split this patch into two separate pieces. Can you please do that? Additionally, please change the prefix for the commit message header to start with "mmc: jz4740:" [...] Kind regards Uffe
Hi Uffe, On 2019年10月03日 18:00, Ulf Hansson wrote: > On Thu, 5 Sep 2019 at 09:40, Zhou Yanjie <zhouyanjie@zoho.com> wrote: >> 1.add support for probing mmc driver on the JZ4760 Soc from Ingenic. >> 2.add support for Low Power Mode of Ingenic's MMC/SD Controller. > Normally we try to make "one" change per patch, unless there are some > good reasons not to. > > In this case, it seems like you should rather split this patch into > two separate pieces. Can you please do that? OK,I'll split it in v2. > > Additionally, please change the prefix for the commit message header > to start with "mmc: jz4740:" sure, it will be change in v2. > > [...] > > Kind regards > Uffe Thanks and best regards!
diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c index d6811a7..1e61f1b 100644 --- a/drivers/mmc/host/jz4740_mmc.c +++ b/drivers/mmc/host/jz4740_mmc.c @@ -43,6 +43,7 @@ #define JZ_REG_MMC_RES 0x34 #define JZ_REG_MMC_RXFIFO 0x38 #define JZ_REG_MMC_TXFIFO 0x3C +#define JZ_REG_MMC_LPM 0x40 #define JZ_REG_MMC_DMAC 0x44 #define JZ_MMC_STRPCL_EXIT_MULTIPLE BIT(7) @@ -102,11 +103,15 @@ #define JZ_MMC_DMAC_DMA_SEL BIT(1) #define JZ_MMC_DMAC_DMA_EN BIT(0) +#define JZ_MMC_LPM_DRV_RISING BIT(31) +#define JZ_MMC_LPM_LOW_POWER_MODE_EN BIT(0) + #define JZ_MMC_CLK_RATE 24000000 enum jz4740_mmc_version { JZ_MMC_JZ4740, JZ_MMC_JZ4725B, + JZ_MMC_JZ4760, JZ_MMC_JZ4780, }; @@ -858,6 +863,16 @@ static int jz4740_mmc_set_clock_rate(struct jz4740_mmc_host *host, int rate) } writew(div, host->base + JZ_REG_MMC_CLKRT); + + if (host->version >= JZ_MMC_JZ4760) { + if (real_rate > 25000000) + writel(JZ_MMC_LPM_DRV_RISING | + JZ_MMC_LPM_LOW_POWER_MODE_EN, + host->base + JZ_REG_MMC_LPM); + } else if (host->version >= JZ_MMC_JZ4725B) + writel(JZ_MMC_LPM_LOW_POWER_MODE_EN, + host->base + JZ_REG_MMC_LPM); + return real_rate; } @@ -935,6 +950,7 @@ static const struct mmc_host_ops jz4740_mmc_ops = { static const struct of_device_id jz4740_mmc_of_match[] = { { .compatible = "ingenic,jz4740-mmc", .data = (void *) JZ_MMC_JZ4740 }, { .compatible = "ingenic,jz4725b-mmc", .data = (void *)JZ_MMC_JZ4725B }, + { .compatible = "ingenic,jz4760-mmc", .data = (void *) JZ_MMC_JZ4760 }, { .compatible = "ingenic,jz4780-mmc", .data = (void *) JZ_MMC_JZ4780 }, {}, };
1.add support for probing mmc driver on the JZ4760 Soc from Ingenic. 2.add support for Low Power Mode of Ingenic's MMC/SD Controller. Signed-off-by: Zhou Yanjie <zhouyanjie@zoho.com> --- drivers/mmc/host/jz4740_mmc.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)