media: atomisp: Replace rarely used macro from math_support.h

Replace rarely used macro by generic ones from Linux kernel headers.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240813131225.2232817-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

Author: andy-shev

drivers/staging/media/atomisp/pci/hive_isp_css_include/math_support.h

@@ -28,12 +28,6 @@
 #define CEIL_SHIFT(a, b)     (((a) + (1 << (b)) - 1) >> (b))
 #define CEIL_SHIFT_MUL(a, b) (CEIL_SHIFT(a, b) << (b))
 
-#if !defined(PIPE_GENERATION)
-
-#define ceil_div(a, b)		(CEIL_DIV(a, b))
-
-#endif /* !defined(PIPE_GENERATION) */
-
 /*
  * For SP and ISP, SDK provides the definition of OP_std_modadd.
  * We need it only for host

drivers/staging/media/atomisp/pci/isp/kernels/ipu2_io_ls/bayer_io_ls/ia_css_bayer_io.host.c

@@ -13,9 +13,11 @@
  * more details.
  */
 
+#include <linux/bitops.h>
+#include <linux/math.h>
+
 #include "ia_css_bayer_io.host.h"
 #include "dma.h"
-#include "math_support.h"
 #ifndef IA_CSS_NO_DEBUG
 #include "ia_css_debug.h"
 #endif
@@ -29,9 +31,8 @@ int ia_css_bayer_io_config(const struct ia_css_binary      *binary,
 	const struct ia_css_frame **out_frames = (const struct ia_css_frame **)
 		&args->out_frame;
 	const struct ia_css_frame_info *in_frame_info = ia_css_frame_get_info(in_frame);
-	const unsigned int ddr_bits_per_element = sizeof(short) * 8;
-	const unsigned int ddr_elems_per_word = ceil_div(HIVE_ISP_DDR_WORD_BITS,
-						ddr_bits_per_element);
+	const unsigned int ddr_elems_per_word =
+		DIV_ROUND_UP(HIVE_ISP_DDR_WORD_BITS, BITS_PER_TYPE(short));
 	unsigned int size_get = 0, size_put = 0;
 	unsigned int offset = 0;
 	int ret;

drivers/staging/media/atomisp/pci/isp/kernels/ipu2_io_ls/yuv444_io_ls/ia_css_yuv444_io.host.c

@@ -13,9 +13,11 @@ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 more details.
 */
 
+#include <linux/bitops.h>
+#include <linux/math.h>
+
 #include "ia_css_yuv444_io.host.h"
 #include "dma.h"
-#include "math_support.h"
 #ifndef IA_CSS_NO_DEBUG
 #include "ia_css_debug.h"
 #endif
@@ -29,9 +31,8 @@ int ia_css_yuv444_io_config(const struct ia_css_binary      *binary,
 	const struct ia_css_frame **out_frames = (const struct ia_css_frame **)
 		&args->out_frame;
 	const struct ia_css_frame_info *in_frame_info = ia_css_frame_get_info(in_frame);
-	const unsigned int ddr_bits_per_element = sizeof(short) * 8;
-	const unsigned int ddr_elems_per_word = ceil_div(HIVE_ISP_DDR_WORD_BITS,
-						ddr_bits_per_element);
+	const unsigned int ddr_elems_per_word =
+		DIV_ROUND_UP(HIVE_ISP_DDR_WORD_BITS, BITS_PER_TYPE(short));
 	unsigned int size_get = 0, size_put = 0;
 	unsigned int offset = 0;
 	int ret;

drivers/staging/media/atomisp/pci/runtime/binary/src/binary.c

@@ -328,7 +328,8 @@ ia_css_binary_dvs_grid_info(const struct ia_css_binary *binary,
 
 	dvs_info = &info->dvs_grid.dvs_grid_info;
 
-	/* for DIS, we use a division instead of a ceil_div. If this is smaller
+	/*
+	 * For DIS, we use a division instead of a DIV_ROUND_UP(). If this is smaller
 	 * than the 3a grid size, it indicates that the outer values are not
 	 * valid for DIS.
 	 */

drivers/staging/media/atomisp/pci/runtime/isys/src/virtual_isys.c

@@ -13,14 +13,15 @@
  * more details.
  */
 
+#include <linux/bitops.h>
+#include <linux/math.h>
 #include <linux/string.h> /* for memcpy() */
 
 #include "system_global.h"
 
 
 #include "ia_css_isys.h"
 #include "ia_css_debug.h"
-#include "math_support.h"
 #include "virtual_isys.h"
 #include "isp.h"
 #include "sh_css_defs.h"
@@ -558,7 +559,7 @@ static int32_t calculate_stride(
 		bits_per_pixel = CEIL_MUL(bits_per_pixel, 8);
 
 	pixels_per_word = HIVE_ISP_DDR_WORD_BITS / bits_per_pixel;
-	words_per_line  = ceil_div(pixels_per_line_padded, pixels_per_word);
+	words_per_line  = DIV_ROUND_UP(pixels_per_line_padded, pixels_per_word);
 	bytes_per_line  = HIVE_ISP_DDR_WORD_BYTES * words_per_line;
 
 	return bytes_per_line;
@@ -690,15 +691,14 @@ static bool calculate_ibuf_ctrl_cfg(
     const isp2401_input_system_cfg_t	*isys_cfg,
     ibuf_ctrl_cfg_t			*cfg)
 {
-	const s32 bits_per_byte = 8;
 	s32 bits_per_pixel;
 	s32 bytes_per_pixel;
 	s32 left_padding;
 
 	(void)input_port;
 
 	bits_per_pixel = isys_cfg->input_port_resolution.bits_per_pixel;
-	bytes_per_pixel = ceil_div(bits_per_pixel, bits_per_byte);
+	bytes_per_pixel = BITS_TO_BYTES(bits_per_pixel);
 
 	left_padding = CEIL_MUL(isys_cfg->output_port_attr.left_padding, ISP_VEC_NELEMS)
 		       * bytes_per_pixel;