From: Markus Pargmann <mpa@pengutronix.de> To: Mark Brown <broonie@kernel.org> Cc: Fabio Estevam <fabio.estevam@freescale.com>, alsa-devel@alsa-project.org, Timur Tabi <timur@tabi.org>, kernel@pengutronix.de, Nicolin Chen <Guangyu.Chen@freescale.com>, Markus Pargmann <mpa@pengutronix.de>, linux-arm-kernel@lists.infradead.org Subject: [PATCH 05/15] ASoC: fsl-ssi: Move imx-specific probe to seperate function Date: Wed, 26 Feb 2014 17:02:08 +0100 [thread overview] Message-ID: <1393430538-32333-6-git-send-email-mpa@pengutronix.de> (raw) In-Reply-To: <1393430538-32333-1-git-send-email-mpa@pengutronix.de> Move imx specific probe code to a seperate function. It reduces the size of the probe() function and makes the code and error handling easier to understand. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> --- sound/soc/fsl/fsl_ssi.c | 183 ++++++++++++++++++++++++++---------------------- 1 file changed, 101 insertions(+), 82 deletions(-) diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index b3e3758..054813d 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -973,6 +973,98 @@ static void make_lowercase(char *s) } } +static int fsl_ssi_imx_probe(struct platform_device *pdev, + struct fsl_ssi_private *ssi_private) +{ + struct device_node *np = pdev->dev.of_node; + u32 dma_events[2], dmas[4]; + bool shared; + int ret; + + ssi_private->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(ssi_private->clk)) { + ret = PTR_ERR(ssi_private->clk); + dev_err(&pdev->dev, "could not get clock: %d\n", ret); + return ret; + } + + ret = clk_prepare_enable(ssi_private->clk); + if (ret) { + dev_err(&pdev->dev, "clk_prepare_enable failed: %d\n", ret); + return ret; + } + + /* For those SLAVE implementations, we ingore non-baudclk cases + * and, instead, abandon MASTER mode that needs baud clock. + */ + ssi_private->baudclk = devm_clk_get(&pdev->dev, "baud"); + if (IS_ERR(ssi_private->baudclk)) + dev_dbg(&pdev->dev, "could not get baud clock: %ld\n", + PTR_ERR(ssi_private->baudclk)); + else + clk_prepare_enable(ssi_private->baudclk); + + /* + * We have burstsize be "fifo_depth - 2" to match the SSI + * watermark setting in fsl_ssi_startup(). + */ + ssi_private->dma_params_tx.maxburst = ssi_private->fifo_depth - 2; + ssi_private->dma_params_rx.maxburst = ssi_private->fifo_depth - 2; + ssi_private->dma_params_tx.addr = ssi_private->ssi_phys + CCSR_SSI_STX0; + ssi_private->dma_params_rx.addr = ssi_private->ssi_phys + CCSR_SSI_SRX0; + ssi_private->dma_params_tx.filter_data = &ssi_private->filter_data_tx; + ssi_private->dma_params_rx.filter_data = &ssi_private->filter_data_rx; + + if (!of_property_read_bool(pdev->dev.of_node, "dmas") && + ssi_private->use_dma) { + /* + * FIXME: This is a temporary solution until all + * necessary dma drivers support the generic dma + * bindings. + */ + ret = of_property_read_u32_array(pdev->dev.of_node, + "fsl,ssi-dma-events", dma_events, 2); + if (ret && ssi_private->use_dma) { + dev_err(&pdev->dev, "could not get dma events but fsl-ssi is configured to use DMA\n"); + goto error_dma_events; + } + } + /* Should this be merge with the above? */ + if (!of_property_read_u32_array(pdev->dev.of_node, "dmas", dmas, 4) + && dmas[2] == IMX_DMATYPE_SSI_DUAL) { + ssi_private->use_dual_fifo = true; + /* When using dual fifo mode, we need to keep watermark + * as even numbers due to dma script limitation. + */ + ssi_private->dma_params_tx.maxburst &= ~0x1; + ssi_private->dma_params_rx.maxburst &= ~0x1; + } + + shared = of_device_is_compatible(of_get_parent(np), "fsl,spba-bus"); + + imx_pcm_dma_params_init_data(&ssi_private->filter_data_tx, + dma_events[0], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI); + imx_pcm_dma_params_init_data(&ssi_private->filter_data_rx, + dma_events[1], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI); + + return 0; + +error_dma_events: + if (!IS_ERR(ssi_private->baudclk)) + clk_disable_unprepare(ssi_private->baudclk); + clk_disable_unprepare(ssi_private->clk); + + return ret; +} + +static void fsl_ssi_imx_clean(struct platform_device *pdev, + struct fsl_ssi_private *ssi_private) +{ + if (!IS_ERR(ssi_private->baudclk)) + clk_disable_unprepare(ssi_private->baudclk); + clk_disable_unprepare(ssi_private->clk); +} + static int fsl_ssi_probe(struct platform_device *pdev) { struct fsl_ssi_private *ssi_private; @@ -986,7 +1078,6 @@ static int fsl_ssi_probe(struct platform_device *pdev) struct resource res; void __iomem *iomem; char name[64]; - bool shared; bool ac97 = false; /* SSIs that are not connected on the board should have a @@ -1108,80 +1199,11 @@ static int fsl_ssi_probe(struct platform_device *pdev) if (hw_type == FSL_SSI_MX21 || hw_type == FSL_SSI_MX51 || hw_type == FSL_SSI_MX35) { - u32 dma_events[2], dmas[4]; ssi_private->ssi_on_imx = true; - ssi_private->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(ssi_private->clk)) { - ret = PTR_ERR(ssi_private->clk); - dev_err(&pdev->dev, "could not get clock: %d\n", ret); + ret = fsl_ssi_imx_probe(pdev, ssi_private); + if (ret) goto error_irqmap; - } - ret = clk_prepare_enable(ssi_private->clk); - if (ret) { - dev_err(&pdev->dev, "clk_prepare_enable failed: %d\n", - ret); - goto error_irqmap; - } - - /* For those SLAVE implementations, we ingore non-baudclk cases - * and, instead, abandon MASTER mode that needs baud clock. - */ - ssi_private->baudclk = devm_clk_get(&pdev->dev, "baud"); - if (IS_ERR(ssi_private->baudclk)) - dev_dbg(&pdev->dev, "could not get baud clock: %ld\n", - PTR_ERR(ssi_private->baudclk)); - else - clk_prepare_enable(ssi_private->baudclk); - - /* - * We have burstsize be "fifo_depth - 2" to match the SSI - * watermark setting in fsl_ssi_startup(). - */ - ssi_private->dma_params_tx.maxburst = - ssi_private->fifo_depth - 2; - ssi_private->dma_params_rx.maxburst = - ssi_private->fifo_depth - 2; - ssi_private->dma_params_tx.addr = - ssi_private->ssi_phys + CCSR_SSI_STX0; - ssi_private->dma_params_rx.addr = - ssi_private->ssi_phys + CCSR_SSI_SRX0; - ssi_private->dma_params_tx.filter_data = - &ssi_private->filter_data_tx; - ssi_private->dma_params_rx.filter_data = - &ssi_private->filter_data_rx; - if (!of_property_read_bool(pdev->dev.of_node, "dmas") && - ssi_private->use_dma) { - /* - * FIXME: This is a temporary solution until all - * necessary dma drivers support the generic dma - * bindings. - */ - ret = of_property_read_u32_array(pdev->dev.of_node, - "fsl,ssi-dma-events", dma_events, 2); - if (ret && ssi_private->use_dma) { - dev_err(&pdev->dev, "could not get dma events but fsl-ssi is configured to use DMA\n"); - goto error_clk; - } - } - /* Should this be merge with the above? */ - if (!of_property_read_u32_array(pdev->dev.of_node, "dmas", dmas, 4) - && dmas[2] == IMX_DMATYPE_SSI_DUAL) { - ssi_private->use_dual_fifo = true; - /* When using dual fifo mode, we need to keep watermark - * as even numbers due to dma script limitation. - */ - ssi_private->dma_params_tx.maxburst &= ~0x1; - ssi_private->dma_params_rx.maxburst &= ~0x1; - } - - shared = of_device_is_compatible(of_get_parent(np), - "fsl,spba-bus"); - - imx_pcm_dma_params_init_data(&ssi_private->filter_data_tx, - dma_events[0], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI); - imx_pcm_dma_params_init_data(&ssi_private->filter_data_rx, - dma_events[1], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI); } /* @@ -1196,7 +1218,7 @@ static int fsl_ssi_probe(struct platform_device *pdev) if (ret < 0) { dev_err(&pdev->dev, "could not claim irq %u\n", ssi_private->irq); - goto error_clk; + goto error_irq; } } @@ -1289,11 +1311,9 @@ error_dbgfs: error_dev: device_remove_file(&pdev->dev, dev_attr); -error_clk: +error_irq: if (ssi_private->ssi_on_imx) { - if (!IS_ERR(ssi_private->baudclk)) - clk_disable_unprepare(ssi_private->baudclk); - clk_disable_unprepare(ssi_private->clk); + fsl_ssi_imx_clean(pdev, ssi_private); } error_irqmap: @@ -1312,11 +1332,10 @@ static int fsl_ssi_remove(struct platform_device *pdev) if (!ssi_private->new_binding) platform_device_unregister(ssi_private->pdev); snd_soc_unregister_component(&pdev->dev); - if (ssi_private->ssi_on_imx) { - if (!IS_ERR(ssi_private->baudclk)) - clk_disable_unprepare(ssi_private->baudclk); - clk_disable_unprepare(ssi_private->clk); - } + + if (ssi_private->ssi_on_imx) + fsl_ssi_imx_clean(pdev, ssi_private); + if (ssi_private->irq_stats) irq_dispose_mapping(ssi_private->irq); -- 1.8.5.3
WARNING: multiple messages have this Message-ID (diff)
From: mpa@pengutronix.de (Markus Pargmann) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 05/15] ASoC: fsl-ssi: Move imx-specific probe to seperate function Date: Wed, 26 Feb 2014 17:02:08 +0100 [thread overview] Message-ID: <1393430538-32333-6-git-send-email-mpa@pengutronix.de> (raw) In-Reply-To: <1393430538-32333-1-git-send-email-mpa@pengutronix.de> Move imx specific probe code to a seperate function. It reduces the size of the probe() function and makes the code and error handling easier to understand. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> --- sound/soc/fsl/fsl_ssi.c | 183 ++++++++++++++++++++++++++---------------------- 1 file changed, 101 insertions(+), 82 deletions(-) diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c index b3e3758..054813d 100644 --- a/sound/soc/fsl/fsl_ssi.c +++ b/sound/soc/fsl/fsl_ssi.c @@ -973,6 +973,98 @@ static void make_lowercase(char *s) } } +static int fsl_ssi_imx_probe(struct platform_device *pdev, + struct fsl_ssi_private *ssi_private) +{ + struct device_node *np = pdev->dev.of_node; + u32 dma_events[2], dmas[4]; + bool shared; + int ret; + + ssi_private->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(ssi_private->clk)) { + ret = PTR_ERR(ssi_private->clk); + dev_err(&pdev->dev, "could not get clock: %d\n", ret); + return ret; + } + + ret = clk_prepare_enable(ssi_private->clk); + if (ret) { + dev_err(&pdev->dev, "clk_prepare_enable failed: %d\n", ret); + return ret; + } + + /* For those SLAVE implementations, we ingore non-baudclk cases + * and, instead, abandon MASTER mode that needs baud clock. + */ + ssi_private->baudclk = devm_clk_get(&pdev->dev, "baud"); + if (IS_ERR(ssi_private->baudclk)) + dev_dbg(&pdev->dev, "could not get baud clock: %ld\n", + PTR_ERR(ssi_private->baudclk)); + else + clk_prepare_enable(ssi_private->baudclk); + + /* + * We have burstsize be "fifo_depth - 2" to match the SSI + * watermark setting in fsl_ssi_startup(). + */ + ssi_private->dma_params_tx.maxburst = ssi_private->fifo_depth - 2; + ssi_private->dma_params_rx.maxburst = ssi_private->fifo_depth - 2; + ssi_private->dma_params_tx.addr = ssi_private->ssi_phys + CCSR_SSI_STX0; + ssi_private->dma_params_rx.addr = ssi_private->ssi_phys + CCSR_SSI_SRX0; + ssi_private->dma_params_tx.filter_data = &ssi_private->filter_data_tx; + ssi_private->dma_params_rx.filter_data = &ssi_private->filter_data_rx; + + if (!of_property_read_bool(pdev->dev.of_node, "dmas") && + ssi_private->use_dma) { + /* + * FIXME: This is a temporary solution until all + * necessary dma drivers support the generic dma + * bindings. + */ + ret = of_property_read_u32_array(pdev->dev.of_node, + "fsl,ssi-dma-events", dma_events, 2); + if (ret && ssi_private->use_dma) { + dev_err(&pdev->dev, "could not get dma events but fsl-ssi is configured to use DMA\n"); + goto error_dma_events; + } + } + /* Should this be merge with the above? */ + if (!of_property_read_u32_array(pdev->dev.of_node, "dmas", dmas, 4) + && dmas[2] == IMX_DMATYPE_SSI_DUAL) { + ssi_private->use_dual_fifo = true; + /* When using dual fifo mode, we need to keep watermark + * as even numbers due to dma script limitation. + */ + ssi_private->dma_params_tx.maxburst &= ~0x1; + ssi_private->dma_params_rx.maxburst &= ~0x1; + } + + shared = of_device_is_compatible(of_get_parent(np), "fsl,spba-bus"); + + imx_pcm_dma_params_init_data(&ssi_private->filter_data_tx, + dma_events[0], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI); + imx_pcm_dma_params_init_data(&ssi_private->filter_data_rx, + dma_events[1], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI); + + return 0; + +error_dma_events: + if (!IS_ERR(ssi_private->baudclk)) + clk_disable_unprepare(ssi_private->baudclk); + clk_disable_unprepare(ssi_private->clk); + + return ret; +} + +static void fsl_ssi_imx_clean(struct platform_device *pdev, + struct fsl_ssi_private *ssi_private) +{ + if (!IS_ERR(ssi_private->baudclk)) + clk_disable_unprepare(ssi_private->baudclk); + clk_disable_unprepare(ssi_private->clk); +} + static int fsl_ssi_probe(struct platform_device *pdev) { struct fsl_ssi_private *ssi_private; @@ -986,7 +1078,6 @@ static int fsl_ssi_probe(struct platform_device *pdev) struct resource res; void __iomem *iomem; char name[64]; - bool shared; bool ac97 = false; /* SSIs that are not connected on the board should have a @@ -1108,80 +1199,11 @@ static int fsl_ssi_probe(struct platform_device *pdev) if (hw_type == FSL_SSI_MX21 || hw_type == FSL_SSI_MX51 || hw_type == FSL_SSI_MX35) { - u32 dma_events[2], dmas[4]; ssi_private->ssi_on_imx = true; - ssi_private->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(ssi_private->clk)) { - ret = PTR_ERR(ssi_private->clk); - dev_err(&pdev->dev, "could not get clock: %d\n", ret); + ret = fsl_ssi_imx_probe(pdev, ssi_private); + if (ret) goto error_irqmap; - } - ret = clk_prepare_enable(ssi_private->clk); - if (ret) { - dev_err(&pdev->dev, "clk_prepare_enable failed: %d\n", - ret); - goto error_irqmap; - } - - /* For those SLAVE implementations, we ingore non-baudclk cases - * and, instead, abandon MASTER mode that needs baud clock. - */ - ssi_private->baudclk = devm_clk_get(&pdev->dev, "baud"); - if (IS_ERR(ssi_private->baudclk)) - dev_dbg(&pdev->dev, "could not get baud clock: %ld\n", - PTR_ERR(ssi_private->baudclk)); - else - clk_prepare_enable(ssi_private->baudclk); - - /* - * We have burstsize be "fifo_depth - 2" to match the SSI - * watermark setting in fsl_ssi_startup(). - */ - ssi_private->dma_params_tx.maxburst = - ssi_private->fifo_depth - 2; - ssi_private->dma_params_rx.maxburst = - ssi_private->fifo_depth - 2; - ssi_private->dma_params_tx.addr = - ssi_private->ssi_phys + CCSR_SSI_STX0; - ssi_private->dma_params_rx.addr = - ssi_private->ssi_phys + CCSR_SSI_SRX0; - ssi_private->dma_params_tx.filter_data = - &ssi_private->filter_data_tx; - ssi_private->dma_params_rx.filter_data = - &ssi_private->filter_data_rx; - if (!of_property_read_bool(pdev->dev.of_node, "dmas") && - ssi_private->use_dma) { - /* - * FIXME: This is a temporary solution until all - * necessary dma drivers support the generic dma - * bindings. - */ - ret = of_property_read_u32_array(pdev->dev.of_node, - "fsl,ssi-dma-events", dma_events, 2); - if (ret && ssi_private->use_dma) { - dev_err(&pdev->dev, "could not get dma events but fsl-ssi is configured to use DMA\n"); - goto error_clk; - } - } - /* Should this be merge with the above? */ - if (!of_property_read_u32_array(pdev->dev.of_node, "dmas", dmas, 4) - && dmas[2] == IMX_DMATYPE_SSI_DUAL) { - ssi_private->use_dual_fifo = true; - /* When using dual fifo mode, we need to keep watermark - * as even numbers due to dma script limitation. - */ - ssi_private->dma_params_tx.maxburst &= ~0x1; - ssi_private->dma_params_rx.maxburst &= ~0x1; - } - - shared = of_device_is_compatible(of_get_parent(np), - "fsl,spba-bus"); - - imx_pcm_dma_params_init_data(&ssi_private->filter_data_tx, - dma_events[0], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI); - imx_pcm_dma_params_init_data(&ssi_private->filter_data_rx, - dma_events[1], shared ? IMX_DMATYPE_SSI_SP : IMX_DMATYPE_SSI); } /* @@ -1196,7 +1218,7 @@ static int fsl_ssi_probe(struct platform_device *pdev) if (ret < 0) { dev_err(&pdev->dev, "could not claim irq %u\n", ssi_private->irq); - goto error_clk; + goto error_irq; } } @@ -1289,11 +1311,9 @@ error_dbgfs: error_dev: device_remove_file(&pdev->dev, dev_attr); -error_clk: +error_irq: if (ssi_private->ssi_on_imx) { - if (!IS_ERR(ssi_private->baudclk)) - clk_disable_unprepare(ssi_private->baudclk); - clk_disable_unprepare(ssi_private->clk); + fsl_ssi_imx_clean(pdev, ssi_private); } error_irqmap: @@ -1312,11 +1332,10 @@ static int fsl_ssi_remove(struct platform_device *pdev) if (!ssi_private->new_binding) platform_device_unregister(ssi_private->pdev); snd_soc_unregister_component(&pdev->dev); - if (ssi_private->ssi_on_imx) { - if (!IS_ERR(ssi_private->baudclk)) - clk_disable_unprepare(ssi_private->baudclk); - clk_disable_unprepare(ssi_private->clk); - } + + if (ssi_private->ssi_on_imx) + fsl_ssi_imx_clean(pdev, ssi_private); + if (ssi_private->irq_stats) irq_dispose_mapping(ssi_private->irq); -- 1.8.5.3
next prev parent reply other threads:[~2014-02-26 16:02 UTC|newest] Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-02-26 16:02 [PATCH 00/15] ASoC: fsl-ssi: Driver cleanup Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-26 16:02 ` [PATCH 01/15] ASoC: fsl-ssi: Use regmap Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-27 2:08 ` Li.Xiubo 2014-02-27 2:08 ` Li.Xiubo at freescale.com 2014-02-27 15:23 ` Markus Pargmann 2014-02-27 15:23 ` Markus Pargmann 2014-02-27 16:06 ` Timur Tabi 2014-02-27 16:06 ` Timur Tabi 2014-03-05 6:21 ` Mark Brown 2014-03-05 6:21 ` Mark Brown 2014-03-05 7:04 ` Li.Xiubo 2014-03-05 7:04 ` Li.Xiubo at freescale.com 2014-03-05 7:07 ` Li.Xiubo 2014-03-05 7:07 ` Li.Xiubo at freescale.com 2014-02-26 16:02 ` [PATCH 02/15] ASoC: fsl-ssi: Remove fsl_ssi_setup Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-26 16:02 ` [PATCH 03/15] ASoC: fsl-ssi: Move debugging to seperate file Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-26 16:02 ` [PATCH 04/15] ASoC: fsl-ssi: Use dev_name for DAI driver struct Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann [this message] 2014-02-26 16:02 ` [PATCH 05/15] ASoC: fsl-ssi: Move imx-specific probe to seperate function Markus Pargmann 2014-02-26 16:02 ` [PATCH 06/15] ASoC: fsl-ssi: Remove useless DMA code Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-26 16:02 ` [PATCH 07/15] ASoC: fsl-ssi: baud clock error handling Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-26 16:02 ` [PATCH 08/15] ASoC: fsl-ssi: Cleanup probe function Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-26 16:02 ` [PATCH 09/15] ASoC: fsl-ssi: Remove unnecessary variables from ssi_private Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-26 16:02 ` [PATCH 10/15] ASoC: fsl-ssi: reorder and document fsl_ssi_private Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-26 16:02 ` [PATCH 11/15] ASoC: fsl-ssi: Fix register values when disabling Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-26 16:02 ` [PATCH 12/15] ASoC: fsl-ssi: Only enable baudclk when used Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-26 16:02 ` [PATCH 13/15] ASoC: fsl-ssi: Set default dai-fmts Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-26 16:02 ` [PATCH 14/15] ASoC: fsl-ssi: Transmit enable synchronization Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann 2014-02-26 16:02 ` [PATCH 15/15] ASoC: fsl-ssi: Update binding documentation Markus Pargmann 2014-02-26 16:02 ` Markus Pargmann
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