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Thu, 1 Oct 2020 15:22:46 +0000 (GMT) From: =?utf-8?q?=C5=81ukasz_Stelmach?= To: Kukjin Kim , Krzysztof Kozlowski , Tomasz Figa , Andi Shyti , Mark Brown , linux-spi@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: m.szyprowski@samsung.com, b.zolnierkie@samsung.com, =?utf-8?b?xYF1a2Fz?= =?utf-8?q?z_Stelmach?= Subject: [PATCH v2 RESEND 1/9] spi: spi-s3c64xx: swap s3c64xx_spi_set_cs() and s3c64xx_enable_datapath() Date: Thu, 1 Oct 2020 17:21:40 +0200 Message-Id: <20201001152148.29747-2-l.stelmach@samsung.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201001152148.29747-1-l.stelmach@samsung.com> MIME-Version: 1.0 Organization: Samsung R&D Institute Poland X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrNKsWRmVeSWpSXmKPExsWy7djP87puX0rjDX7+MrdY/OM5k8XGGetZ LaY+fMJm0f/4NbPF+fMb2C1uHlrBaLHp8TVWi8u75rBZzDi/j8mi8eNNdou1R+6yW6za9YfR gcfj+pJPzB47Z91l99i0qpPNY/OSeo++LasYPT5vkgtgi+KySUnNySxLLdK3S+DKeHI2p+Ap e0XLm2usDYx72boYOTkkBEwkXk/bB2RzcQgJrGCUmPvqKguE84VR4tS3KcwQzmdGiZ8/prPC tHw71QKVWM4oMW3SdXYI5zmjxLfGuYwgVWwCjhL9S0+wgiREBLYzSUz8fJ4FJMEsUCrRs/MQ 2HZhgSyJey9fg9ksAqoS83uWMIHYvALWEk2nbjFDrJOXaF++HayGU8BG4tzEw2wQNYISJ2c+ AZvJL6AlsabpOtR8eYnmrbPBzpMQuMcucWjFByaIQS4SN452QQ0Vlnh1fAs7hC0jcXpyD1Az B5BdLzF5khlEbw+jxLY5P1ggaqwl7pz7xQZSwyygKbF+lz5E2FHiw/15zBCtfBI33gpCnMAn MWnbdKgwr0RHmxBEtYrEuv49UAOlJHpfrWCcwKg0C8kzs5A8MAth1wJG5lWM4qmlxbnpqcWG eanlesWJucWleel6yfm5mxiBSer0v+OfdjB+vZR0iFGAg1GJhzfjUGm8EGtiWXFl7iFGCQ5m JRFep7On44R4UxIrq1KL8uOLSnNSiw8xSnOwKInzGi96GSskkJ5YkpqdmlqQWgSTZeLglGpg FKyt2/6758HttN8bT662r40penN4Tanl8pjWJ3Xftpp/rsk8rKK//K9f/lkX7ZWZ5TvZj9xQ TnU+cGriW2En5eX/ZIq/bAgRnLCi815DSYtma678N0nPfME1M3br8DIxVakrb1d3XbXgqr35 vvLsP+6i9yRPvL1h1irKPWXH6ZRMEze7SapKSizFGYmGWsxFxYkAmrCkhU4DAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrNIsWRmVeSWpSXmKPExsVy+t/xe7puX0rjDRY1qFgs/vGcyWLjjPWs FlMfPmGz6H/8mtni/PkN7BY3D61gtNj0+BqrxeVdc9gsZpzfx2TR+PEmu8XaI3fZLVbt+sPo wONxfcknZo+ds+6ye2xa1cnmsXlJvUffllWMHp83yQWwRenZFOWXlqQqZOQXl9gqRRtaGOkZ WlroGZlY6hkam8daGZkq6dvZpKTmZJalFunbJehlPDmbU/CUvaLlzTXWBsa9bF2MnBwSAiYS 3061MHcxcnEICSxllLjx9gVrFyMHUEJKYuXcdIgaYYk/17rYIGqeMkps2jqHFSTBJuAo0b/0 BCtIQkRgP5PEpQv3WUASzALlEpdmPWcHsYUFMiS+NUwGi7MIqErM71nCBGLzClhLNJ26xQyx QV6iffl2sIs4BWwkzk08DGYLCeRK7N59lA2iXlDi5MwnLCDHMQuoS6yfJwQS5hfQkljTdB1q rbxE89bZzBMYhWYh6ZiF0DELSdUCRuZVjCKppcW56bnFRnrFibnFpXnpesn5uZsYgRG57djP LTsYu94FH2IU4GBU4uEVOFAaL8SaWFZcmXuIUYKDWUmE1+ns6Tgh3pTEyqrUovz4otKc1OJD jKZAb05klhJNzgcmi7ySeENTQ3MLS0NzY3NjMwslcd4OgYMxQgLpiSWp2ampBalFMH1MHJxS DYxr5+xZlKy4N+71D3GDJefDkvN4/0js27TlanJp3bY3NcaLb3NO1ZJW9j/bbdxeuuTYiqea WQuD8nYd6z7UzD9nrhr3rJB/y7SW7dizqKajz/Vo9XfVvYwvjgg8TfHjiRN9X+/9h22GT1Py o42rrki02qu5fzH0XVJ7/sGh+Yu3bHD04fxwu3aHEktxRqKhFnNRcSIALolJXd4CAAA= X-CMS-MailID: 20201001152246eucas1p1b4155ab4f06a39cc88f205b4a7cd47f9 X-Msg-Generator: CA X-RootMTR: 20201001152246eucas1p1b4155ab4f06a39cc88f205b4a7cd47f9 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20201001152246eucas1p1b4155ab4f06a39cc88f205b4a7cd47f9 References: <20200821161401.11307-1-l.stelmach@samsung.com> <20201001152148.29747-1-l.stelmach@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org Fix issues with DMA transfers bigger than 512 bytes on Exynos3250. Without the patches such transfers fail to complete. This solution to the problem is found in the vendor kernel for ARTIK5 boards based on Exynos3250. Reviewed-by: Krzysztof Kozlowski Signed-off-by: Łukasz Stelmach --- drivers/spi/spi-s3c64xx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 924b24441789..26c7cb79cd78 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -685,11 +685,11 @@ static int s3c64xx_spi_transfer_one(struct spi_master *master, sdd->state &= ~RXBUSY; sdd->state &= ~TXBUSY; - s3c64xx_enable_datapath(sdd, xfer, use_dma); - /* Start the signals */ s3c64xx_spi_set_cs(spi, true); + s3c64xx_enable_datapath(sdd, xfer, use_dma); + spin_unlock_irqrestore(&sdd->lock, flags); if (use_dma)