Dear, Addy. On 11/03/2014 07:23 PM, addy ke wrote: > Hi, Jaehoo > > On 2014/11/3 16:59, Jaehoon Chung wrote: >> Hi, Addy. >> >> On 11/03/2014 10:20 AM, Addy Ke wrote: >>> The bit of sdio interrupt is 16 in designware implementation, >>> but it is 24 on Rockchip SoCs.This patch add sdio_id0 for the >>> number of slot0 in the SDIO interrupt registers. >>> >>> Signed-off-by: Addy Ke <addy.ke@xxxxxxxxxxxxxx> >>> --- >>> Changes in v2: >>> - rebase on http://git.linaro.org/git/people/ulf.hansson/mmc.git, next branch >>> Changes in v3: >>> - Remove dts for sdio_id0, just replace this with 8, suggested by Doug >>> - Change to support all Rockchip Socs, suggested by Heiko >>> >>> drivers/mmc/host/dw_mmc-rockchip.c | 10 ++++++++++ >>> drivers/mmc/host/dw_mmc.c | 12 +++++++----- >>> drivers/mmc/host/dw_mmc.h | 2 ++ >>> include/linux/mmc/dw_mmc.h | 3 +++ >>> 4 files changed, 22 insertions(+), 5 deletions(-) >>> >>> diff --git a/drivers/mmc/host/dw_mmc-rockchip.c b/drivers/mmc/host/dw_mmc-rockchip.c >>> index bbb4ec3..b997c8f 100644 >>> --- a/drivers/mmc/host/dw_mmc-rockchip.c >>> +++ b/drivers/mmc/host/dw_mmc-rockchip.c >>> @@ -68,14 +68,24 @@ static void dw_mci_rk3288_set_ios(struct dw_mci *host, struct mmc_ios *ios) >>> } >>> } >>> >>> +static int dw_mci_rockchip_parse_dt(struct dw_mci *host) >>> +{ >>> + /* It is slot 8 on Rockchip SoCs */ >>> + host->sdio_id0 = 8; >>> + >>> + return 0; >>> +} >> >> Well, function is "__parse_dt__", but this function don't parse anything. >> If All rockchip soc is supported, i think that it can be located to other place. >> > Can add it in "init" function? like this: > int dw_mci_rockchip_init(struct dw_mci *host) > { > /* It is slot 8 on Rockchip SoCs */ > host->sdio_id0 = 8; > > return 0; > } > static const struct dw_mci_drv_data xxxx { > .... > .init = dw_mci_rockchip_init, > }; I think good this solution is used. "init-hook" can be also used in future. When you resend the patch, i will reply with my-ack. Best Regards, Jaehoon Chung > > >> Best Regards, >> Jaehoon Chung >> >>> + >>> static const struct dw_mci_drv_data rk2928_drv_data = { >>> .prepare_command = dw_mci_rockchip_prepare_command, >>> + .parse_dt = dw_mci_rockchip_parse_dt, >>> }; >>> >>> static const struct dw_mci_drv_data rk3288_drv_data = { >>> .prepare_command = dw_mci_rockchip_prepare_command, >>> .set_ios = dw_mci_rk3288_set_ios, >>> .setup_clock = dw_mci_rk3288_setup_clock, >>> + .parse_dt = dw_mci_rockchip_parse_dt, >>> }; >>> >>> static const struct of_device_id dw_mci_rockchip_match[] = { >>> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c >>> index bb46b1b..a633b58 100644 >>> --- a/drivers/mmc/host/dw_mmc.c >>> +++ b/drivers/mmc/host/dw_mmc.c >>> @@ -823,7 +823,7 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot, bool force_clkinit) >>> >>> /* enable clock; only low power if no SDIO */ >>> clk_en_a = SDMMC_CLKEN_ENABLE << slot->id; >>> - if (!(mci_readl(host, INTMASK) & SDMMC_INT_SDIO(slot->id))) >>> + if (!(mci_readl(host, INTMASK) & SDMMC_INT_SDIO(slot->sdio_id))) >>> clk_en_a |= SDMMC_CLKEN_LOW_PWR << slot->id; >>> mci_writel(host, CLKENA, clk_en_a); >>> >>> @@ -1184,10 +1184,10 @@ static void dw_mci_enable_sdio_irq(struct mmc_host *mmc, int enb) >>> dw_mci_disable_low_power(slot); >>> >>> mci_writel(host, INTMASK, >>> - (int_mask | SDMMC_INT_SDIO(slot->id))); >>> + (int_mask | SDMMC_INT_SDIO(slot->sdio_id))); >>> } else { >>> mci_writel(host, INTMASK, >>> - (int_mask & ~SDMMC_INT_SDIO(slot->id))); >>> + (int_mask & ~SDMMC_INT_SDIO(slot->sdio_id))); >>> } >>> } >>> >>> @@ -2056,8 +2056,9 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id) >>> /* Handle SDIO Interrupts */ >>> for (i = 0; i < host->num_slots; i++) { >>> struct dw_mci_slot *slot = host->slot[i]; >>> - if (pending & SDMMC_INT_SDIO(i)) { >>> - mci_writel(host, RINTSTS, SDMMC_INT_SDIO(i)); >>> + if (pending & SDMMC_INT_SDIO(slot->sdio_id)) { >>> + mci_writel(host, RINTSTS, >>> + SDMMC_INT_SDIO(slot->sdio_id)); >>> mmc_signal_sdio_irq(slot->mmc); >>> } >>> } >>> @@ -2145,6 +2146,7 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id) >>> >>> slot = mmc_priv(mmc); >>> slot->id = id; >>> + slot->sdio_id = host->sdio_id0 + id; >>> slot->mmc = mmc; >>> slot->host = host; >>> host->slot[id] = slot; >>> diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h >>> index 71d4995..0562f10 100644 >>> --- a/drivers/mmc/host/dw_mmc.h >>> +++ b/drivers/mmc/host/dw_mmc.h >>> @@ -214,6 +214,7 @@ extern int dw_mci_resume(struct dw_mci *host); >>> * with CONFIG_MMC_CLKGATE. >>> * @flags: Random state bits associated with the slot. >>> * @id: Number of this slot. >>> + * @sdio_id: Number of this slot in the SDIO interrupt registers. >>> */ >>> struct dw_mci_slot { >>> struct mmc_host *mmc; >>> @@ -233,6 +234,7 @@ struct dw_mci_slot { >>> #define DW_MMC_CARD_PRESENT 0 >>> #define DW_MMC_CARD_NEED_INIT 1 >>> int id; >>> + int sdio_id; >>> }; >>> >>> struct dw_mci_tuning_data { >>> diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h >>> index 69d0814..72c319f 100644 >>> --- a/include/linux/mmc/dw_mmc.h >>> +++ b/include/linux/mmc/dw_mmc.h >>> @@ -96,6 +96,7 @@ struct mmc_data; >>> * @quirks: Set of quirks that apply to specific versions of the IP. >>> * @irq_flags: The flags to be passed to request_irq. >>> * @irq: The irq value to be passed to request_irq. >>> + * @sdio_id0: Number of slot0 in the SDIO interrupt registers. >>> * >>> * Locking >>> * ======= >>> @@ -191,6 +192,8 @@ struct dw_mci { >>> bool vqmmc_enabled; >>> unsigned long irq_flags; /* IRQ flags */ >>> int irq; >>> + >>> + int sdio_id0; >>> }; >>> >>> /* DMA ops for Internal/External DMAC interface */ >>> >> >> >> >> > > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
