From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753487AbaKDODi (ORCPT ); Tue, 4 Nov 2014 09:03:38 -0500 Received: from regular1.263xmail.com ([211.150.99.138]:57183 "EHLO regular1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752203AbaKDODe (ORCPT ); Tue, 4 Nov 2014 09:03:34 -0500 X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-RL-SENDER: addy.ke@rock-chips.com X-FST-TO: robh+dt@kernel.org X-SENDER-IP: 127.0.0.1 X-LOGIN-NAME: addy.ke@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 From: Addy Ke To: robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, rdunlap@infradead.org, tgih.jun@samsung.com, jh80.chung@samsung.com, chris@printf.net, ulf.hansson@linaro.org, dinguyen@altera.com, heiko@sntech.de, olof@lixom.net, dianders@chromium.org, sonnyrao@chromium.org Cc: devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, zhenfu.fang@rock-chips.com, cf@rock-chips.com, lintao@rock-chips.com, chenfen@rock-chips.com, zyf@rock-chips.com, xjq@rock-chips.com, huangtao@rock-chips.com, zyw@rock-chips.com, yzq@rock-chips.com, hj@rock-chips.com, kever.yang@rock-chips.com, zhangqing@rock-chips.com, hl@rock-chips.com, Addy Ke Subject: [PATCH v4] mmc: dw_mmc: add support for the other bit of sdio interrupt Date: Tue, 4 Nov 2014 22:03:09 +0800 Message-Id: <1415109789-7046-1-git-send-email-addy.ke@rock-chips.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1414977633-3196-1-git-send-email-addy.ke@rock-chips.com> References: <1414977633-3196-1-git-send-email-addy.ke@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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 Changes in v4: - use init-hook to set sdio_id0, suggested by Jaehoon 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..5650ac4 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_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 rk2928_drv_data = { .prepare_command = dw_mci_rockchip_prepare_command, + .init = dw_mci_rockchip_init, }; 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, + .init = dw_mci_rockchip_init, }; 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 */ -- 1.8.3.2