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Sun, 26 Apr 2020 02:27:46 +0000 From: Jonathan Bakker To: kyungmin.park@samsung.com, s.nawrocki@samsung.com, mchehab@kernel.org, kgene@kernel.org, krzk@kernel.org, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Jonathan Bakker Subject: [PATCH 11/11] media: exynos4-is: Correct parallel port probing Date: Sat, 25 Apr 2020 19:26:50 -0700 Message-ID: X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200426022650.10355-1-xc-racer2@live.ca> References: <20200426022650.10355-1-xc-racer2@live.ca> X-ClientProxiedBy: MWHPR17CA0086.namprd17.prod.outlook.com (2603:10b6:300:c2::24) To BN6PR04MB0660.namprd04.prod.outlook.com (2603:10b6:404:d9::21) X-Microsoft-Original-Message-ID: <20200426022650.10355-12-xc-racer2@live.ca> MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from jon-hp-6570b.telus (2001:569:fb67:7300:9f89:4b96:de0b:cd14) by MWHPR17CA0086.namprd17.prod.outlook.com (2603:10b6:300:c2::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2937.13 via Frontend Transport; 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Unfortunately, the driver was treating 0 as invalid and 1 as camera port A. Match the binding doc and make 0=A and 1=B. [1] Documentation/devicetree/bindings/media/samsung-fimc.txt Signed-off-by: Jonathan Bakker --- drivers/media/platform/exynos4-is/media-dev.c | 18 +++++++++++++----- drivers/media/platform/exynos4-is/media-dev.h | 1 + include/media/drv-intf/exynos-fimc.h | 2 +- 3 files changed, 15 insertions(+), 6 deletions(-) diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c index a87ebd7913be..9c4fdf726b92 100644 --- a/drivers/media/platform/exynos4-is/media-dev.c +++ b/drivers/media/platform/exynos4-is/media-dev.c @@ -418,13 +418,21 @@ static int fimc_md_parse_port_node(struct fimc_md *fmd, return ret; } - if (WARN_ON(endpoint.base.port == 0) || *index >= FIMC_MAX_SENSORS) { - of_node_put(ep); - return -EINVAL; + if (fimc_input_is_parallel(endpoint.base.port)) { + if (WARN_ON(*index >= FIMC_MAX_PARALLEL)) { + of_node_put(ep); + return -EINVAL; + } + pd->mux_id = endpoint.base.port; + } else { + if (WARN_ON(endpoint.base.port == 0 || + *index >= FIMC_MAX_SENSORS)) { + of_node_put(ep); + return -EINVAL; + } + pd->mux_id = (endpoint.base.port - 1) & 0x1; } - pd->mux_id = (endpoint.base.port - 1) & 0x1; - rem = of_graph_get_remote_port_parent(ep); of_node_put(ep); if (rem == NULL) { diff --git a/drivers/media/platform/exynos4-is/media-dev.h b/drivers/media/platform/exynos4-is/media-dev.h index 4b8f9ac52ebc..7bd93fd11b33 100644 --- a/drivers/media/platform/exynos4-is/media-dev.h +++ b/drivers/media/platform/exynos4-is/media-dev.h @@ -29,6 +29,7 @@ #define PINCTRL_STATE_IDLE "idle" +#define FIMC_MAX_PARALLEL 2 #define FIMC_MAX_SENSORS 4 #define FIMC_MAX_CAMCLKS 2 #define DEFAULT_SENSOR_CLK_FREQ 24000000U diff --git a/include/media/drv-intf/exynos-fimc.h b/include/media/drv-intf/exynos-fimc.h index 6b9ef631d6bb..5a07576c378b 100644 --- a/include/media/drv-intf/exynos-fimc.h +++ b/include/media/drv-intf/exynos-fimc.h @@ -44,7 +44,7 @@ enum fimc_bus_type { FIMC_BUS_TYPE_ISP_WRITEBACK = FIMC_BUS_TYPE_LCD_WRITEBACK_B, }; -#define fimc_input_is_parallel(x) ((x) == 1 || (x) == 2) +#define fimc_input_is_parallel(x) ((x) == 0 || (x) == 1) #define fimc_input_is_mipi_csi(x) ((x) == 3 || (x) == 4) /*