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drivers: display: fix zero-buffers-in-SRAM case in DCNANO LCDIF #58879

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merged 1 commit into from
Jun 15, 2023
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drivers: display: fix zero-buffers-in-SRAM case in DCNANO LCDIF #58879

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6 changes: 2 additions & 4 deletions drivers/display/display_mcux_dcnano_lcdif.c
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Original file line number Diff line number Diff line change
Expand Up @@ -258,15 +258,15 @@ static const struct display_driver_api mcux_dcnano_lcdif_api = {

#define MCUX_DCNANO_LCDIF_PIXEL_BYTES(n) \
(DISPLAY_BITS_PER_PIXEL(DT_INST_PROP(n, pixel_format)) / 8)
#define MCUX_DCNANO_LCDIF_FB_SIZE(n) DT_INST_PROP(n, width) * \
DT_INST_PROP(n, height) * MCUX_DCNANO_LCDIF_PIXEL_BYTES(n)

/* When using external framebuffer mem, we should not allocate framebuffers
* in SRAM. Instead, we use external framebuffer address and size
* from devicetree.
*/
#ifdef CONFIG_MCUX_DCNANO_LCDIF_EXTERNAL_FB_MEM
#define MCUX_DCNANO_LCDIF_FRAMEBUFFER_DECL(n)
#define MCUX_DCNANO_LCDIF_FB_SIZE(n) DT_INST_PROP(n, width) * \
DT_INST_PROP(n, height) * MCUX_DCNANO_LCDIF_PIXEL_BYTES(n)
#define MCUX_DCNANO_LCDIF_FRAMEBUFFER(n) \
(uint8_t *)CONFIG_MCUX_DCNANO_LCDIF_EXTERNAL_FB_ADDR
#else
Expand All @@ -275,8 +275,6 @@ static const struct display_driver_api mcux_dcnano_lcdif_api = {
DT_INST_PROP(n, height) * \
MCUX_DCNANO_LCDIF_PIXEL_BYTES(n) * \
CONFIG_MCUX_DCNANO_LCDIF_FB_NUM]
#define MCUX_DCNANO_LCDIF_FB_SIZE(n) \
sizeof(mcux_dcnano_lcdif_frame_buffer_##n) / CONFIG_MCUX_DCNANO_LCDIF_FB_NUM
#define MCUX_DCNANO_LCDIF_FRAMEBUFFER(n) mcux_dcnano_lcdif_frame_buffer_##n
#endif

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