diff options
author | Ajay Singh <ajay.kathat@microchip.com> | 2018-02-14 16:40:10 +0530 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-16 15:31:29 +0100 |
commit | 00c2903b16dff07c09f2c31012674abe5424b54d (patch) | |
tree | a80d99a1129f4ada78f1bc60e7bbf930711a3c16 /drivers/staging/wilc1000/wilc_spi.c | |
parent | 10660003be9c33481a1df479bcf8b959dd1a50c3 (diff) |
staging: wilc1000: modified code comments as per linux coding style
Cleanup patch to follow the comments style as per the Linux coding
style.
Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/wilc1000/wilc_spi.c')
-rw-r--r-- | drivers/staging/wilc1000/wilc_spi.c | 151 |
1 files changed, 82 insertions, 69 deletions
diff --git a/drivers/staging/wilc1000/wilc_spi.c b/drivers/staging/wilc1000/wilc_spi.c index 8f71a6022721..5d0de4e4b4dd 100644 --- a/drivers/staging/wilc1000/wilc_spi.c +++ b/drivers/staging/wilc1000/wilc_spi.c @@ -422,9 +422,9 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz, return N_FAIL; } - /** + /* * Command/Control response - **/ + */ if (cmd == CMD_RESET || cmd == CMD_TERMINATE || cmd == CMD_REPEAT) { @@ -443,9 +443,9 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz, return N_FAIL; } - /** + /* * State response - **/ + */ rsp = rb[rix++]; if (rsp != 0x00) { dev_err(&spi->dev, "Failed cmd state response state (%02x)\n", @@ -458,12 +458,15 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz, int retry; /* u16 crc1, crc2; */ u8 crc[2]; - /** + /* * Data Respnose header - **/ + */ retry = 100; do { - /* ensure there is room in buffer later to read data and crc */ + /* + * ensure there is room in buffer later + * to read data and crc + */ if (rix < len2) { rsp = rb[rix++]; } else { @@ -481,9 +484,9 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz, } if (cmd == CMD_INTERNAL_READ || cmd == CMD_SINGLE_READ) { - /** + /* * Read bytes - **/ + */ if ((rix + 3) < len2) { b[0] = rb[rix++]; b[1] = rb[rix++]; @@ -496,9 +499,9 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz, } if (!g_spi.crc_off) { - /** + /* * Read Crc - **/ + */ if ((rix + 1) < len2) { crc[0] = rb[rix++]; crc[1] = rb[rix++]; @@ -524,18 +527,18 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz, else nbytes = DATA_PKT_SZ - ix; - /** + /* * Read bytes - **/ + */ if (wilc_spi_rx(wilc, &b[ix], nbytes)) { dev_err(&spi->dev, "Failed data block read, bus error...\n"); result = N_FAIL; goto _error_; } - /** + /* * Read Crc - **/ + */ if (!g_spi.crc_off) { if (wilc_spi_rx(wilc, crc, 2)) { dev_err(&spi->dev, "Failed data block crc read, bus error...\n"); @@ -548,7 +551,10 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz, sz -= nbytes; } - /* if any data in left unread, then read the rest using normal DMA code.*/ + /* + * if any data in left unread, + * then read the rest using normal DMA code. + */ while (sz > 0) { int nbytes; @@ -557,14 +563,14 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz, else nbytes = DATA_PKT_SZ; - /** + /* * read data response only on the next DMA cycles not * the first DMA since data response header is already * handled above for the first DMA. - **/ - /** + */ + /* * Data Respnose header - **/ + */ retry = 10; do { if (wilc_spi_rx(wilc, &rsp, 1)) { @@ -579,18 +585,18 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz, if (result == N_FAIL) break; - /** + /* * Read bytes - **/ + */ if (wilc_spi_rx(wilc, &b[ix], nbytes)) { dev_err(&spi->dev, "Failed data block read, bus error...\n"); result = N_FAIL; break; } - /** + /* * Read Crc - **/ + */ if (!g_spi.crc_off) { if (wilc_spi_rx(wilc, crc, 2)) { dev_err(&spi->dev, "Failed data block crc read, bus error...\n"); @@ -616,9 +622,9 @@ static int spi_data_write(struct wilc *wilc, u8 *b, u32 sz) u8 cmd, order, crc[2] = {0}; /* u8 rsp; */ - /** - * Data - **/ + /* + * Data + */ ix = 0; do { if (sz <= DATA_PKT_SZ) @@ -626,9 +632,9 @@ static int spi_data_write(struct wilc *wilc, u8 *b, u32 sz) else nbytes = DATA_PKT_SZ; - /** - * Write command - **/ + /* + * Write command + */ cmd = 0xf0; if (ix == 0) { if (sz <= DATA_PKT_SZ) @@ -650,9 +656,9 @@ static int spi_data_write(struct wilc *wilc, u8 *b, u32 sz) break; } - /** - * Write data - **/ + /* + * Write data + */ if (wilc_spi_tx(wilc, &b[ix], nbytes)) { dev_err(&spi->dev, "Failed data block write, bus error...\n"); @@ -660,9 +666,9 @@ static int spi_data_write(struct wilc *wilc, u8 *b, u32 sz) break; } - /** - * Write Crc - **/ + /* + * Write Crc + */ if (!g_spi.crc_off) { if (wilc_spi_tx(wilc, crc, 2)) { dev_err(&spi->dev, "Failed data block crc write, bus error...\n"); @@ -671,9 +677,9 @@ static int spi_data_write(struct wilc *wilc, u8 *b, u32 sz) } } - /** - * No need to wait for response - **/ + /* + * No need to wait for response + */ ix += nbytes; sz -= nbytes; } while (sz); @@ -733,7 +739,7 @@ static int wilc_spi_write_reg(struct wilc *wilc, u32 addr, u32 data) data = cpu_to_le32(data); if (addr < 0x30) { - /* Clockless register*/ + /* Clockless register */ cmd = CMD_INTERNAL_WRITE; clockless = 1; } @@ -751,9 +757,9 @@ static int wilc_spi_write(struct wilc *wilc, u32 addr, u8 *buf, u32 size) int result; u8 cmd = CMD_DMA_EXT_WRITE; - /** - * has to be greated than 4 - **/ + /* + * has to be greated than 4 + */ if (size <= 4) return 0; @@ -764,9 +770,9 @@ static int wilc_spi_write(struct wilc *wilc, u32 addr, u8 *buf, u32 size) return 0; } - /** - * Data - **/ + /* + * Data + */ result = spi_data_write(wilc, buf, size); if (result != N_OK) dev_err(&spi->dev, "Failed block data write...\n"); @@ -783,7 +789,7 @@ static int wilc_spi_read_reg(struct wilc *wilc, u32 addr, u32 *data) if (addr < 0x30) { /* dev_err(&spi->dev, "***** read addr %d\n\n", addr); */ - /* Clockless register*/ + /* Clockless register */ cmd = CMD_INTERNAL_READ; clockless = 1; } @@ -825,9 +831,9 @@ static int wilc_spi_read(struct wilc *wilc, u32 addr, u8 *buf, u32 size) static int _wilc_spi_deinit(struct wilc *wilc) { - /** - * TODO: - **/ + /* + * TODO: + */ return 1; } @@ -849,15 +855,19 @@ static int wilc_spi_init(struct wilc *wilc, bool resume) memset(&g_spi, 0, sizeof(struct wilc_spi)); - /** - * configure protocol - **/ + /* + * configure protocol + */ g_spi.crc_off = 0; - /* TODO: We can remove the CRC trials if there is a definite way to reset */ + /* + * TODO: We can remove the CRC trials if there is a definite + * way to reset + */ /* the SPI to it's initial value. */ if (!spi_internal_read(wilc, WILC_SPI_PROTOCOL_OFFSET, ®)) { - /* Read failed. Try with CRC off. This might happen when module + /* + * Read failed. Try with CRC off. This might happen when module * is removed but chip isn't reset */ g_spi.crc_off = 1; @@ -870,7 +880,7 @@ static int wilc_spi_init(struct wilc *wilc, bool resume) } } if (g_spi.crc_off == 0) { - reg &= ~0xc; /* disable crc checking */ + reg &= ~0xc; /* disable crc checking */ reg &= ~0x70; reg |= (0x5 << 4); if (!spi_internal_write(wilc, WILC_SPI_PROTOCOL_OFFSET, reg)) { @@ -880,9 +890,9 @@ static int wilc_spi_init(struct wilc *wilc, bool resume) g_spi.crc_off = 1; } - /** - * make sure can read back chip id correctly - **/ + /* + * make sure can read back chip id correctly + */ if (!wilc_spi_read_reg(wilc, 0x1000, &chipid)) { dev_err(&spi->dev, "Fail cmd read chip id...\n"); return 0; @@ -994,7 +1004,10 @@ static int wilc_spi_clear_int_ext(struct wilc *wilc, u32 val) ret = 1; for (i = 0; i < g_spi.nint; i++) { - /* No matter what you write 1 or 0, it will clear interrupt. */ + /* + * No matter what you write 1 or 0, + * it will clear interrupt. + */ if (flags & 1) ret = wilc_spi_write_reg(wilc, 0x10c8 + i * 4, 1); if (!ret) @@ -1036,9 +1049,9 @@ static int wilc_spi_clear_int_ext(struct wilc *wilc, u32 val) } if ((val & EN_VMM) == EN_VMM) { - /** - * enable vmm transfer. - **/ + /* + * enable vmm transfer. + */ ret = wilc_spi_write_reg(wilc, WILC_VMM_CORE_CTL, 1); if (!ret) { @@ -1065,9 +1078,9 @@ static int wilc_spi_sync_ext(struct wilc *wilc, int nint) g_spi.nint = nint; - /** - * interrupt pin mux select - **/ + /* + * interrupt pin mux select + */ ret = wilc_spi_read_reg(wilc, WILC_PIN_MUX_0, ®); if (!ret) { dev_err(&spi->dev, "Failed read reg (%08x)...\n", @@ -1082,9 +1095,9 @@ static int wilc_spi_sync_ext(struct wilc *wilc, int nint) return 0; } - /** - * interrupt enable - **/ + /* + * interrupt enable + */ ret = wilc_spi_read_reg(wilc, WILC_INTR_ENABLE, ®); if (!ret) { dev_err(&spi->dev, "Failed read reg (%08x)...\n", |