Hi, Addy. On 10/31/2014 12:50 PM, Addy Ke wrote: > The bit of sdio interrupt is 16 in designware implementation, > but it is 24 in RK3288. This patch add sdio_id0 for the number > of slot0 in the SDIO interrupt registers, which can be set in > platform DT table, such as: > - rockchip,sdio-interrupt-slot0 = <8>; I have a question. (It's not important question) You mentioned the sdio-irq bit used from 24 to 31, right? Then what interrupts are used from 16 to 23 at RK3288? Just reserved? Best Regards, Jaehoon Chung > > 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 > > drivers/mmc/host/dw_mmc-rockchip.c | 13 +++++++++++++ > drivers/mmc/host/dw_mmc.c | 12 +++++++----- > drivers/mmc/host/dw_mmc.h | 2 ++ > include/linux/mmc/dw_mmc.h | 3 +++ > 4 files changed, 25 insertions(+), 5 deletions(-) > > diff --git a/drivers/mmc/host/dw_mmc-rockchip.c b/drivers/mmc/host/dw_mmc-rockchip.c > index bbb4ec3..1cb3bc6 100644 > --- a/drivers/mmc/host/dw_mmc-rockchip.c > +++ b/drivers/mmc/host/dw_mmc-rockchip.c > @@ -68,6 +68,18 @@ static void dw_mci_rk3288_set_ios(struct dw_mci *host, struct mmc_ios *ios) > } > } > > +static int dw_mci_rk3288_parse_dt(struct dw_mci *host) > +{ > + struct device_node *np = host->dev->of_node; > + int sdio_id0; > + > + if (!of_property_read_u32(np, "rockchip,sdio-interrupt-slot0", > + &sdio_id0)) > + host->sdio_id0 = sdio_id0; > + > + return 0; > +} > + > static const struct dw_mci_drv_data rk2928_drv_data = { > .prepare_command = dw_mci_rockchip_prepare_command, > }; > @@ -76,6 +88,7 @@ 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_rk3288_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 devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
