From: dirk.brandewie@gmail.com To: linux-kernel@vger.kernel.org, spi-devel-general@lists.sourceforge.net Cc: Dirk Brandewie <dirk.brandewie@gmail.com> Subject: [PATCH 05/11] spi-dw: split spi_dw_enable_chip() into spi_dw_enable()/spi_dw_disable() Date: Wed, 22 Jun 2011 19:00:07 -0700 [thread overview] Message-ID: <1308794413-11069-6-git-send-email-dirk.brandewie@gmail.com> (raw) In-Reply-To: <1308794413-11069-1-git-send-email-dirk.brandewie@gmail.com> From: Dirk Brandewie <dirk.brandewie@gmail.com> Split spi_dw_enable_chip() into two inline functions for readabilty. Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com> --- drivers/spi/spi-dw-mid.c | 4 ++-- drivers/spi/spi-dw.c | 16 ++++++++-------- drivers/spi/spi-dw.h | 9 +++++++-- 3 files changed, 17 insertions(+), 12 deletions(-) diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c index 7659cef..78e64d3 100644 --- a/drivers/spi/spi-dw-mid.c +++ b/drivers/spi/spi-dw-mid.c @@ -115,7 +115,7 @@ static int mid_spi_dma_transfer(struct spi_dw *dws, int cs_change) /* 1. setup DMA related registers */ if (cs_change) { - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); dw_writew(dws, dmardlr, 0xf); dw_writew(dws, dmatdlr, 0x10); if (dws->tx_dma) @@ -123,7 +123,7 @@ static int mid_spi_dma_transfer(struct spi_dw *dws, int cs_change) if (dws->rx_dma) dma_ctrl |= 0x1; dw_writew(dws, dmacr, dma_ctrl); - spi_dw_enable_chip(dws, 1); + spi_dw_enable(dws); } dws->dma_chan_done = 0; diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index 3d98e4c..ad92826 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -293,7 +293,7 @@ static void spi_dw_giveback(struct spi_dw *dws) static void spi_dw_int_error_stop(struct spi_dw *dws, const char *msg) { /* Stop the hw */ - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); dev_err(&dws->master->dev, "%s\n", msg); dws->cur_msg->state = ERROR_STATE; @@ -518,7 +518,7 @@ static void spi_dw_pump_transfers(unsigned long data) * 3. control value changes */ if (dw_readw(dws, ctrl0) != cr0 || cs_change || clk_div || imask) { - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); if (dw_readw(dws, ctrl0) != cr0) dw_writew(dws, ctrl0, cr0); @@ -533,7 +533,7 @@ static void spi_dw_pump_transfers(unsigned long data) if (txint_level) dw_writew(dws, txfltr, txint_level); - spi_dw_enable_chip(dws, 1); + spi_dw_enable(dws); if (cs_change) dws->prev_chip = chip; } @@ -776,9 +776,9 @@ static int destroy_queue(struct spi_dw *dws) /* Restart the controller, disable all interrupts, clean rx fifo */ static void spi_dw_hw_init(struct spi_dw *dws) { - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); spi_dw_mask_intr(dws, 0xff); - spi_dw_enable_chip(dws, 1); + spi_dw_enable(dws); /* * Try to detect the FIFO depth if not set by interface driver, @@ -868,7 +868,7 @@ err_queue_alloc: if (dws->dma_ops && dws->dma_ops->dma_exit) dws->dma_ops->dma_exit(dws); err_diable_hw: - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); free_irq(dws->irq, dws); err_free_master: spi_master_put(master); @@ -893,7 +893,7 @@ void __devexit spi_dw_remove_host(struct spi_dw *dws) if (dws->dma_ops && dws->dma_ops->dma_exit) dws->dma_ops->dma_exit(dws); - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); /* Disable clk */ spi_dw_set_clk(dws, 0); free_irq(dws->irq, dws); @@ -910,7 +910,7 @@ int spi_dw_suspend_host(struct spi_dw *dws) ret = spi_dw_stop_queue(dws); if (ret) return ret; - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); spi_dw_set_clk(dws, 0); return ret; } diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h index 6a1ee63..860bc34 100644 --- a/drivers/spi/spi-dw.h +++ b/drivers/spi/spi-dw.h @@ -161,9 +161,14 @@ struct spi_dw { #define dw_writew(dw, name, val) \ __raw_writew((val), &(((struct spi_dw_reg *)dw->regs)->name)) -static inline void spi_dw_enable_chip(struct spi_dw *dws, int enable) +static inline void spi_dw_enable(struct spi_dw *dws) { - dw_writel(dws, ssienr, (enable ? 1 : 0)); + dw_writel(dws, ssienr, 1); +} + +static inline void spi_dw_disable(struct spi_dw *dws) +{ + dw_writel(dws, ssienr, 0); } static inline void spi_dw_set_clk(struct spi_dw *dws, u16 div) -- 1.7.3.4
WARNING: multiple messages have this Message-ID (diff)
From: dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Cc: Dirk Brandewie <dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Subject: [PATCH 05/11] spi-dw: split spi_dw_enable_chip() into spi_dw_enable()/spi_dw_disable() Date: Wed, 22 Jun 2011 19:00:07 -0700 [thread overview] Message-ID: <1308794413-11069-6-git-send-email-dirk.brandewie@gmail.com> (raw) In-Reply-To: <1308794413-11069-1-git-send-email-dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> From: Dirk Brandewie <dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Split spi_dw_enable_chip() into two inline functions for readabilty. Signed-off-by: Dirk Brandewie <dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> --- drivers/spi/spi-dw-mid.c | 4 ++-- drivers/spi/spi-dw.c | 16 ++++++++-------- drivers/spi/spi-dw.h | 9 +++++++-- 3 files changed, 17 insertions(+), 12 deletions(-) diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c index 7659cef..78e64d3 100644 --- a/drivers/spi/spi-dw-mid.c +++ b/drivers/spi/spi-dw-mid.c @@ -115,7 +115,7 @@ static int mid_spi_dma_transfer(struct spi_dw *dws, int cs_change) /* 1. setup DMA related registers */ if (cs_change) { - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); dw_writew(dws, dmardlr, 0xf); dw_writew(dws, dmatdlr, 0x10); if (dws->tx_dma) @@ -123,7 +123,7 @@ static int mid_spi_dma_transfer(struct spi_dw *dws, int cs_change) if (dws->rx_dma) dma_ctrl |= 0x1; dw_writew(dws, dmacr, dma_ctrl); - spi_dw_enable_chip(dws, 1); + spi_dw_enable(dws); } dws->dma_chan_done = 0; diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index 3d98e4c..ad92826 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -293,7 +293,7 @@ static void spi_dw_giveback(struct spi_dw *dws) static void spi_dw_int_error_stop(struct spi_dw *dws, const char *msg) { /* Stop the hw */ - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); dev_err(&dws->master->dev, "%s\n", msg); dws->cur_msg->state = ERROR_STATE; @@ -518,7 +518,7 @@ static void spi_dw_pump_transfers(unsigned long data) * 3. control value changes */ if (dw_readw(dws, ctrl0) != cr0 || cs_change || clk_div || imask) { - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); if (dw_readw(dws, ctrl0) != cr0) dw_writew(dws, ctrl0, cr0); @@ -533,7 +533,7 @@ static void spi_dw_pump_transfers(unsigned long data) if (txint_level) dw_writew(dws, txfltr, txint_level); - spi_dw_enable_chip(dws, 1); + spi_dw_enable(dws); if (cs_change) dws->prev_chip = chip; } @@ -776,9 +776,9 @@ static int destroy_queue(struct spi_dw *dws) /* Restart the controller, disable all interrupts, clean rx fifo */ static void spi_dw_hw_init(struct spi_dw *dws) { - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); spi_dw_mask_intr(dws, 0xff); - spi_dw_enable_chip(dws, 1); + spi_dw_enable(dws); /* * Try to detect the FIFO depth if not set by interface driver, @@ -868,7 +868,7 @@ err_queue_alloc: if (dws->dma_ops && dws->dma_ops->dma_exit) dws->dma_ops->dma_exit(dws); err_diable_hw: - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); free_irq(dws->irq, dws); err_free_master: spi_master_put(master); @@ -893,7 +893,7 @@ void __devexit spi_dw_remove_host(struct spi_dw *dws) if (dws->dma_ops && dws->dma_ops->dma_exit) dws->dma_ops->dma_exit(dws); - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); /* Disable clk */ spi_dw_set_clk(dws, 0); free_irq(dws->irq, dws); @@ -910,7 +910,7 @@ int spi_dw_suspend_host(struct spi_dw *dws) ret = spi_dw_stop_queue(dws); if (ret) return ret; - spi_dw_enable_chip(dws, 0); + spi_dw_disable(dws); spi_dw_set_clk(dws, 0); return ret; } diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h index 6a1ee63..860bc34 100644 --- a/drivers/spi/spi-dw.h +++ b/drivers/spi/spi-dw.h @@ -161,9 +161,14 @@ struct spi_dw { #define dw_writew(dw, name, val) \ __raw_writew((val), &(((struct spi_dw_reg *)dw->regs)->name)) -static inline void spi_dw_enable_chip(struct spi_dw *dws, int enable) +static inline void spi_dw_enable(struct spi_dw *dws) { - dw_writel(dws, ssienr, (enable ? 1 : 0)); + dw_writel(dws, ssienr, 1); +} + +static inline void spi_dw_disable(struct spi_dw *dws) +{ + dw_writel(dws, ssienr, 0); } static inline void spi_dw_set_clk(struct spi_dw *dws, u16 div) -- 1.7.3.4 ------------------------------------------------------------------------------ Simplify data backup and recovery for your virtual environment with vRanger. Installation's a snap, and flexible recovery options mean your data is safe, secure and there when you need it. Data protection magic? Nope - It's vRanger. Get your free trial download today. http://p.sf.net/sfu/quest-sfdev2dev
next prev parent reply other threads:[~2011-06-23 2:03 UTC|newest] Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-06-23 2:00 [PATCH 00/11] RFC spi-dw updates dirk.brandewie 2011-06-23 2:00 ` [PATCH 01/11] spi-dw: expose platform data stucture dirk.brandewie 2011-06-23 3:47 ` Grant Likely 2011-06-23 4:00 ` Dirk Brandewie 2011-06-23 4:03 ` glikely@secretlab.ca 2011-06-23 4:37 ` Dirk Brandewie 2011-06-23 5:06 ` glikely@secretlab.ca 2011-06-23 5:16 ` Dirk Brandewie 2011-06-23 2:00 ` [PATCH 02/11] spi-dw: update function naming convention to match file naming dirk.brandewie 2011-06-23 2:00 ` dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w 2011-06-23 2:00 ` [PATCH 03/11] spi-dw: change MRST prefix to generic prefix dirk.brandewie 2011-06-23 2:00 ` dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w 2011-06-23 2:00 ` [PATCH 04/11] spi-dw: remove unused definition dirk.brandewie 2011-06-23 2:00 ` dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w 2011-06-23 2:00 ` dirk.brandewie [this message] 2011-06-23 2:00 ` [PATCH 05/11] spi-dw: split spi_dw_enable_chip() into spi_dw_enable()/spi_dw_disable() dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w 2011-06-23 2:00 ` [PATCH 06/11] spi-dw: Force error on out of range chip select dirk.brandewie 2011-06-23 2:00 ` dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w 2011-06-23 3:51 ` Grant Likely 2011-06-23 4:13 ` Dirk Brandewie 2011-06-23 2:00 ` [PATCH 07/11] spi-dw: Set number of available chip selects correctly dirk.brandewie 2011-06-23 2:00 ` dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w 2011-06-23 3:53 ` Grant Likely 2011-06-23 2:00 ` [PATCH 08/11] spi-dw: Ensure fifo lenght is set dirk.brandewie 2011-06-23 2:00 ` dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w 2011-06-23 2:41 ` Feng Tang 2011-06-23 2:41 ` Feng Tang 2011-06-23 3:01 ` Dirk Brandewie 2011-06-23 3:01 ` Dirk Brandewie 2011-06-23 3:21 ` Feng Tang 2011-06-23 3:21 ` Feng Tang 2011-06-23 3:55 ` Grant Likely 2011-06-23 4:20 ` Dirk Brandewie 2011-06-23 2:00 ` [PATCH 09/11] spi-dw: Fix condition in spi_dw_{writer/reader} dirk.brandewie 2011-06-23 2:00 ` dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w 2011-06-23 2:45 ` Feng Tang 2011-06-23 2:45 ` Feng Tang 2011-06-23 3:09 ` Dirk Brandewie 2011-06-23 3:09 ` Dirk Brandewie 2011-06-23 3:25 ` Feng Tang 2011-06-23 3:25 ` Feng Tang 2011-06-23 3:30 ` Dirk Brandewie 2011-06-23 3:30 ` Dirk Brandewie 2011-06-23 5:09 ` Feng Tang 2011-06-23 5:09 ` Feng Tang 2011-06-23 2:00 ` [PATCH 10/11] spi-dw: Move checking of max_speed_hz value to be a prerequisite in spi_dw_setup dirk.brandewie 2011-06-23 2:00 ` [PATCH 11/11] spi-dw: remove noop else clause dirk.brandewie 2011-06-23 2:00 ` dirk.brandewie-Re5JQEeQqe8AvxtiuMwx3w 2011-06-23 2:47 ` Feng Tang 2011-06-23 2:47 ` Feng Tang 2011-06-23 3:13 ` Dirk Brandewie 2011-06-23 3:13 ` Dirk Brandewie 2011-06-23 2:39 ` [PATCH 00/11] RFC spi-dw updates Feng Tang 2011-06-23 2:39 ` Feng Tang
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