On Sun, Jan 30, 2022 at 07:06:55PM +0100, Moses Christopher Bollavarapu wrote:
> There is a BIT(nr) macro available in Linux Kernel,
> which does the same thing.
> Example: BIT(7) = (1UL << 7)
>
> Also use GENMASK for masking
> Example: GENMASK(3, 0) = 0b00001111 (same as (1 << 4) - 1)
>
> Signed-off-by: Moses Christopher Bollavarapu <mosescb.dev@xxxxxxxxx>
This patch does a couple unrelated things. Break out the GENMASK()
change into its own patch.
> @@ -65,7 +66,7 @@ enum ia_css_fw_type {
> ia_css_sp_firmware, /** Firmware for the SP */
> ia_css_isp_firmware, /** Firmware for the ISP */
> ia_css_bootloader_firmware, /** Firmware for the BootLoader */
> - ia_css_acc_firmware /** Firmware for accelrations */
> + ia_css_acc_firmware, /** Firmware for accelrations */
> };
This change needs to be in its own patch.
> diff --git a/drivers/staging/media/atomisp/pci/ia_css_env.h b/drivers/staging/media/atomisp/pci/ia_css_env.h
> index 3b89bbd837a0..b9ebc14441a1 100644
> --- a/drivers/staging/media/atomisp/pci/ia_css_env.h
> +++ b/drivers/staging/media/atomisp/pci/ia_css_env.h
> @@ -18,6 +18,7 @@
>
> #include <type_support.h>
> #include <linux/stdarg.h> /* va_list */
> +#include <linux/bits.h> /* BIT(nr) */
This comment is not required.
> enum ia_css_rx_irq_info {
> - IA_CSS_RX_IRQ_INFO_BUFFER_OVERRUN = 1U << 0, /** buffer overrun */
> - IA_CSS_RX_IRQ_INFO_ENTER_SLEEP_MODE = 1U << 1, /** entering sleep mode */
> - IA_CSS_RX_IRQ_INFO_EXIT_SLEEP_MODE = 1U << 2, /** exited sleep mode */
> - IA_CSS_RX_IRQ_INFO_ECC_CORRECTED = 1U << 3, /** ECC corrected */
> - IA_CSS_RX_IRQ_INFO_ERR_SOT = 1U << 4,
> + IA_CSS_RX_IRQ_INFO_BUFFER_OVERRUN = BIT(0), /** buffer overrun */
> + IA_CSS_RX_IRQ_INFO_ENTER_SLEEP_MODE = BIT(1), /** entering sleep mode */
> + IA_CSS_RX_IRQ_INFO_EXIT_SLEEP_MODE = BIT(2), /** exited sleep mode */
> + IA_CSS_RX_IRQ_INFO_ECC_CORRECTED = BIT(3), /** ECC corrected */
> + IA_CSS_RX_IRQ_INFO_ERR_SOT = BIT(4),
> /** Start of transmission */
> - IA_CSS_RX_IRQ_INFO_ERR_SOT_SYNC = 1U << 5, /** SOT sync (??) */
> - IA_CSS_RX_IRQ_INFO_ERR_CONTROL = 1U << 6, /** Control (??) */
> - IA_CSS_RX_IRQ_INFO_ERR_ECC_DOUBLE = 1U << 7, /** Double ECC */
> - IA_CSS_RX_IRQ_INFO_ERR_CRC = 1U << 8, /** CRC error */
> - IA_CSS_RX_IRQ_INFO_ERR_UNKNOWN_ID = 1U << 9, /** Unknown ID */
> - IA_CSS_RX_IRQ_INFO_ERR_FRAME_SYNC = 1U << 10,/** Frame sync error */
> - IA_CSS_RX_IRQ_INFO_ERR_FRAME_DATA = 1U << 11,/** Frame data error */
> - IA_CSS_RX_IRQ_INFO_ERR_DATA_TIMEOUT = 1U << 12,/** Timeout occurred */
> - IA_CSS_RX_IRQ_INFO_ERR_UNKNOWN_ESC = 1U << 13,/** Unknown escape seq. */
> - IA_CSS_RX_IRQ_INFO_ERR_LINE_SYNC = 1U << 14,/** Line Sync error */
> - IA_CSS_RX_IRQ_INFO_INIT_TIMEOUT = 1U << 15,
> + IA_CSS_RX_IRQ_INFO_ERR_SOT_SYNC = BIT(5), /** SOT sync (??) */
> + IA_CSS_RX_IRQ_INFO_ERR_CONTROL = BIT(6), /** Control (??) */
> + IA_CSS_RX_IRQ_INFO_ERR_ECC_DOUBLE = BIT(7), /** Double ECC */
> + IA_CSS_RX_IRQ_INFO_ERR_CRC = BIT(8), /** CRC error */
> + IA_CSS_RX_IRQ_INFO_ERR_UNKNOWN_ID = BIT(9), /** Unknown ID */
> + IA_CSS_RX_IRQ_INFO_ERR_FRAME_SYNC = BIT(10),/** Frame sync error */
> + IA_CSS_RX_IRQ_INFO_ERR_FRAME_DATA = BIT(11),/** Frame data error */
> + IA_CSS_RX_IRQ_INFO_ERR_DATA_TIMEOUT = BIT(12),/** Timeout occurred */
> + IA_CSS_RX_IRQ_INFO_ERR_UNKNOWN_ESC = BIT(13),/** Unknown escape seq. */
> + IA_CSS_RX_IRQ_INFO_ERR_LINE_SYNC = BIT(14),/** Line Sync error */
The comment is kind of messed up. There should be a space after the
comma and just /* Line Sync error */
> + IA_CSS_RX_IRQ_INFO_INIT_TIMEOUT = BIT(15),
> };
regards,
dan carpenter
