From: Andy Shevchenko <andriy.shevchenko@linux.intel.com> To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>, Mark Brown <broonie@kernel.org>, linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Daniel Mack <daniel@zonque.org>, Haojian Zhuang <haojian.zhuang@gmail.com>, Robert Jarzmik <robert.jarzmik@free.fr>, Russell King <linux@armlinux.org.uk> Subject: [PATCH v1 05/10] spi: pxa2xx: Skip SSP initialization if it's done elsewhere Date: Tue, 26 Mar 2024 20:07:55 +0200 [thread overview] Message-ID: <20240326181027.1418989-6-andriy.shevchenko@linux.intel.com> (raw) In-Reply-To: <20240326181027.1418989-1-andriy.shevchenko@linux.intel.com> If SSP has been enumerated elsewhere, skip its initialization in pxa2xx_spi_init_pdata(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- drivers/spi/spi-pxa2xx.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index e7072727c25c..b01a18c89b6b 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1355,6 +1355,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev) struct device *dev = &pdev->dev; struct device *parent = dev->parent; enum pxa_ssp_type type = SSP_UNDEFINED; + struct ssp_device *ssp = NULL; const void *match; bool is_lpss_priv; int status; @@ -1372,6 +1373,10 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev) return ERR_PTR(status); type = (enum pxa_ssp_type)value; + } else { + ssp = pxa_ssp_request(pdev->id, pdev->name); + if (ssp) + type = ssp->type; } /* Validate the SSP type correctness */ @@ -1394,6 +1399,10 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev) pdata->enable_dma = true; pdata->dma_burst_size = 1; + /* If SSP has been already enumerated, use it */ + if (ssp) + return pdata; + status = pxa2xx_spi_init_ssp(pdev, &pdata->ssp, type); if (status) return ERR_PTR(status); -- 2.43.0.rc1.1.gbec44491f096
WARNING: multiple messages have this Message-ID (diff)
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com> To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>, Mark Brown <broonie@kernel.org>, linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Daniel Mack <daniel@zonque.org>, Haojian Zhuang <haojian.zhuang@gmail.com>, Robert Jarzmik <robert.jarzmik@free.fr>, Russell King <linux@armlinux.org.uk> Subject: [PATCH v1 05/10] spi: pxa2xx: Skip SSP initialization if it's done elsewhere Date: Tue, 26 Mar 2024 20:07:55 +0200 [thread overview] Message-ID: <20240326181027.1418989-6-andriy.shevchenko@linux.intel.com> (raw) In-Reply-To: <20240326181027.1418989-1-andriy.shevchenko@linux.intel.com> If SSP has been enumerated elsewhere, skip its initialization in pxa2xx_spi_init_pdata(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- drivers/spi/spi-pxa2xx.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index e7072727c25c..b01a18c89b6b 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1355,6 +1355,7 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev) struct device *dev = &pdev->dev; struct device *parent = dev->parent; enum pxa_ssp_type type = SSP_UNDEFINED; + struct ssp_device *ssp = NULL; const void *match; bool is_lpss_priv; int status; @@ -1372,6 +1373,10 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev) return ERR_PTR(status); type = (enum pxa_ssp_type)value; + } else { + ssp = pxa_ssp_request(pdev->id, pdev->name); + if (ssp) + type = ssp->type; } /* Validate the SSP type correctness */ @@ -1394,6 +1399,10 @@ pxa2xx_spi_init_pdata(struct platform_device *pdev) pdata->enable_dma = true; pdata->dma_burst_size = 1; + /* If SSP has been already enumerated, use it */ + if (ssp) + return pdata; + status = pxa2xx_spi_init_ssp(pdev, &pdata->ssp, type); if (status) return ERR_PTR(status); -- 2.43.0.rc1.1.gbec44491f096 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-03-26 18:10 UTC|newest] Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-03-26 18:07 [PATCH v1 00/10] spi: pxa2xx: Drop linux/spi/pxa2xx_spi.h Andy Shevchenko 2024-03-26 18:07 ` Andy Shevchenko 2024-03-26 18:07 ` [PATCH v1 01/10] spi: pxa2xx: Drop ACPI_PTR() and of_match_ptr() Andy Shevchenko 2024-03-26 18:07 ` Andy Shevchenko 2024-03-26 18:16 ` Mark Brown 2024-03-26 18:16 ` Mark Brown 2024-03-26 18:22 ` Andy Shevchenko 2024-03-26 18:22 ` Andy Shevchenko 2024-03-26 18:25 ` Mark Brown 2024-03-26 18:25 ` Mark Brown 2024-03-26 18:44 ` Andy Shevchenko 2024-03-26 18:44 ` Andy Shevchenko 2024-03-26 18:49 ` Mark Brown 2024-03-26 18:49 ` Mark Brown 2024-03-26 18:52 ` Andy Shevchenko 2024-03-26 18:52 ` Andy Shevchenko 2024-03-26 19:10 ` Mark Brown 2024-03-26 19:10 ` Mark Brown 2024-03-26 19:20 ` Andy Shevchenko 2024-03-26 19:20 ` Andy Shevchenko 2024-03-26 19:21 ` Andy Shevchenko 2024-03-26 19:21 ` Andy Shevchenko 2024-03-26 19:32 ` Mark Brown 2024-03-26 19:32 ` Mark Brown 2024-03-26 20:04 ` Andy Shevchenko 2024-03-26 20:04 ` Andy Shevchenko 2024-03-26 20:12 ` Mark Brown 2024-03-26 20:12 ` Mark Brown 2024-03-26 20:17 ` Andy Shevchenko 2024-03-26 20:17 ` Andy Shevchenko 2024-03-26 18:07 ` [PATCH v1 02/10] spi: pxa2xx: Keep PXA*_SSP types together Andy Shevchenko 2024-03-26 18:07 ` Andy Shevchenko 2024-03-26 18:07 ` [PATCH v1 03/10] spi: pxa2xx: Switch to use dev_err_probe() Andy Shevchenko 2024-03-26 18:07 ` Andy Shevchenko 2024-03-26 18:07 ` [PATCH v1 04/10] spi: pxa2xx: Extract pxa2xx_spi_init_ssp() helper Andy Shevchenko 2024-03-26 18:07 ` Andy Shevchenko 2024-03-26 18:07 ` Andy Shevchenko [this message] 2024-03-26 18:07 ` [PATCH v1 05/10] spi: pxa2xx: Skip SSP initialization if it's done elsewhere Andy Shevchenko 2024-03-26 18:07 ` [PATCH v1 06/10] spi: pxa2xx: Allow number of chip select pins to be read from property Andy Shevchenko 2024-03-26 18:07 ` Andy Shevchenko 2024-03-26 18:07 ` [PATCH v1 07/10] spi: pxa2xx: Provide num-cs for Sharp PDAs via device properties Andy Shevchenko 2024-03-26 18:07 ` Andy Shevchenko 2024-03-26 18:21 ` Mark Brown 2024-03-26 18:21 ` Mark Brown 2024-03-26 18:50 ` Andy Shevchenko 2024-03-26 18:50 ` Andy Shevchenko 2024-03-26 20:02 ` Mark Brown 2024-03-26 20:02 ` Mark Brown 2024-03-26 20:12 ` Andy Shevchenko 2024-03-26 20:12 ` Andy Shevchenko 2024-03-26 20:26 ` Mark Brown 2024-03-26 20:26 ` Mark Brown 2024-03-26 21:20 ` Andy Shevchenko 2024-03-26 21:20 ` Andy Shevchenko 2024-03-26 18:07 ` [PATCH v1 08/10] spi: pxa2xx: Move contents of linux/spi/pxa2xx_spi.h to a local one Andy Shevchenko 2024-03-26 18:07 ` Andy Shevchenko 2024-03-26 18:07 ` [PATCH v1 09/10] spi: pxa2xx: Remove outdated documentation Andy Shevchenko 2024-03-26 18:07 ` Andy Shevchenko 2024-03-26 18:08 ` [PATCH v1 10/10] spi: pxa2xx: Don't use "proxy" headers Andy Shevchenko 2024-03-26 18:08 ` Andy Shevchenko 2024-03-26 20:55 ` (subset) [PATCH v1 00/10] spi: pxa2xx: Drop linux/spi/pxa2xx_spi.h Mark Brown 2024-03-26 20:55 ` Mark Brown
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