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([78.10.206.178]) by smtp.gmail.com with ESMTPSA id z23-20020aa7c657000000b0054ccac03945sm4999771edr.12.2023.12.24.03.49.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 24 Dec 2023 03:49:20 -0800 (PST) From: Krzysztof Kozlowski To: Sylwester Nawrocki , Mauro Carvalho Chehab , Krzysztof Kozlowski , Alim Akhtar , linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 02/12] media: fimc-lite: constify several pointers in function arguments Date: Sun, 24 Dec 2023 12:49:06 +0100 Message-Id: <20231224114916.111433-2-krzysztof.kozlowski@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231224114916.111433-1-krzysztof.kozlowski@linaro.org> References: <20231224114916.111433-1-krzysztof.kozlowski@linaro.org> Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Several functions do not modify pointed structure, thus the pointer can point to const data for additional safety and self-documenting intention of the function. Signed-off-by: Krzysztof Kozlowski --- .../platform/samsung/exynos4-is/fimc-lite-reg.c | 13 +++++++------ .../platform/samsung/exynos4-is/fimc-lite-reg.h | 10 +++++----- 2 files changed, 12 insertions(+), 11 deletions(-) diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.c b/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.c index 57996b4104b4..2483277a6cb0 100644 --- a/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.c +++ b/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.c @@ -124,7 +124,7 @@ static const u32 src_pixfmt_map[8][3] = { }; /* Set camera input pixel format and resolution */ -void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f) +void flite_hw_set_source_format(struct fimc_lite *dev, const struct flite_frame *f) { u32 pixelcode = f->fmt->mbus_code; int i = ARRAY_SIZE(src_pixfmt_map); @@ -155,7 +155,7 @@ void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f) } /* Set the camera host input window offsets (cropping) */ -void flite_hw_set_window_offset(struct fimc_lite *dev, struct flite_frame *f) +void flite_hw_set_window_offset(struct fimc_lite *dev, const struct flite_frame *f) { u32 hoff2, voff2; u32 cfg; @@ -186,7 +186,7 @@ static void flite_hw_set_camera_port(struct fimc_lite *dev, int id) /* Select serial or parallel bus, camera port (A,B) and set signals polarity */ void flite_hw_set_camera_bus(struct fimc_lite *dev, - struct fimc_source_info *si) + const struct fimc_source_info *si) { u32 cfg = readl(dev->regs + FLITE_REG_CIGCTRL); unsigned int flags = si->flags; @@ -226,7 +226,8 @@ static void flite_hw_set_pack12(struct fimc_lite *dev, int on) writel(cfg, dev->regs + FLITE_REG_CIODMAFMT); } -static void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f) +static void flite_hw_set_out_order(struct fimc_lite *dev, + const struct flite_frame *f) { static const u32 pixcode[4][2] = { { MEDIA_BUS_FMT_YUYV8_2X8, FLITE_REG_CIODMAFMT_YCBYCR }, @@ -244,7 +245,7 @@ static void flite_hw_set_out_order(struct fimc_lite *dev, struct flite_frame *f) writel(cfg | pixcode[i][1], dev->regs + FLITE_REG_CIODMAFMT); } -void flite_hw_set_dma_window(struct fimc_lite *dev, struct flite_frame *f) +void flite_hw_set_dma_window(struct fimc_lite *dev, const struct flite_frame *f) { u32 cfg; @@ -294,7 +295,7 @@ void flite_hw_mask_dma_buffer(struct fimc_lite *dev, u32 index) } /* Enable/disable output DMA, set output pixel size and offsets (composition) */ -void flite_hw_set_output_dma(struct fimc_lite *dev, struct flite_frame *f, +void flite_hw_set_output_dma(struct fimc_lite *dev, const struct flite_frame *f, bool enable) { u32 cfg = readl(dev->regs + FLITE_REG_CIGCTRL); diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.h b/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.h index 3b8af3ce1838..c5ec36dfb2f9 100644 --- a/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.h +++ b/drivers/media/platform/samsung/exynos4-is/fimc-lite-reg.h @@ -133,13 +133,13 @@ void flite_hw_set_interrupt_mask(struct fimc_lite *dev); void flite_hw_capture_start(struct fimc_lite *dev); void flite_hw_capture_stop(struct fimc_lite *dev); void flite_hw_set_camera_bus(struct fimc_lite *dev, - struct fimc_source_info *s_info); -void flite_hw_set_window_offset(struct fimc_lite *dev, struct flite_frame *f); -void flite_hw_set_source_format(struct fimc_lite *dev, struct flite_frame *f); + const struct fimc_source_info *s_info); +void flite_hw_set_window_offset(struct fimc_lite *dev, const struct flite_frame *f); +void flite_hw_set_source_format(struct fimc_lite *dev, const struct flite_frame *f); -void flite_hw_set_output_dma(struct fimc_lite *dev, struct flite_frame *f, +void flite_hw_set_output_dma(struct fimc_lite *dev, const struct flite_frame *f, bool enable); -void flite_hw_set_dma_window(struct fimc_lite *dev, struct flite_frame *f); +void flite_hw_set_dma_window(struct fimc_lite *dev, const struct flite_frame *f); void flite_hw_set_test_pattern(struct fimc_lite *dev, bool on); void flite_hw_dump_regs(struct fimc_lite *dev, const char *label); void flite_hw_set_dma_buffer(struct fimc_lite *dev, struct flite_buffer *buf);