diff options
| author | Christian Gromm <christian.gromm@microchip.com> | 2016-08-18 16:58:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-18 17:24:00 +0200 |
| commit | 95a31ef173e7cad94e5cb381d7893f92cee788a1 (patch) | |
| tree | cedb222c0a9fdc9c3eb44c528bb87995fa576791 /drivers/staging/most/hdm-dim2 | |
| parent | 9fe7aeaca7ffec24a821c493b272614bd153b9aa (diff) | |
| download | linux-95a31ef173e7cad94e5cb381d7893f92cee788a1.tar.bz2 | |
staging: most: dim2-hdm: introduce function dim2_transfer_madr
This patch removes duplicated code by putting it into the new function
dim2_transfer_madr.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/most/hdm-dim2')
| -rw-r--r-- | drivers/staging/most/hdm-dim2/dim2_hal.c | 38 |
1 files changed, 15 insertions, 23 deletions
diff --git a/drivers/staging/most/hdm-dim2/dim2_hal.c b/drivers/staging/most/hdm-dim2/dim2_hal.c index 901f742f2fd7..20b69705cfdb 100644 --- a/drivers/staging/most/hdm-dim2/dim2_hal.c +++ b/drivers/staging/most/hdm-dim2/dim2_hal.c @@ -135,6 +135,17 @@ static void free_dbr(int offs, int size) /* -------------------------------------------------------------------------- */ +static void dim2_transfer_madr(u32 val) +{ + dimcb_io_write(&g.dim2->MADR, val); + + /* wait for transfer completion */ + while ((dimcb_io_read(&g.dim2->MCTL) & 1) != 1) + continue; + + dimcb_io_write(&g.dim2->MCTL, 0); /* clear transfer complete */ +} + static void dim2_clear_dbr(u16 addr, u16 size) { enum { MADR_TB_BIT = 30, MADR_WNR_BIT = 31 }; @@ -145,26 +156,13 @@ static void dim2_clear_dbr(u16 addr, u16 size) dimcb_io_write(&g.dim2->MCTL, 0); /* clear transfer complete */ dimcb_io_write(&g.dim2->MDAT0, 0); - for (; addr < end_addr; addr++) { - dimcb_io_write(&g.dim2->MADR, cmd | addr); - - /* wait till transfer is completed */ - while ((dimcb_io_read(&g.dim2->MCTL) & 1) != 1) - continue; - - dimcb_io_write(&g.dim2->MCTL, 0); /* clear transfer complete */ - } + for (; addr < end_addr; addr++) + dim2_transfer_madr(cmd | addr); } static u32 dim2_read_ctr(u32 ctr_addr, u16 mdat_idx) { - dimcb_io_write(&g.dim2->MADR, ctr_addr); - - /* wait till transfer is completed */ - while ((dimcb_io_read(&g.dim2->MCTL) & 1) != 1) - continue; - - dimcb_io_write(&g.dim2->MCTL, 0); /* clear transfer complete */ + dim2_transfer_madr(ctr_addr); return dimcb_io_read((&g.dim2->MDAT0) + mdat_idx); } @@ -189,13 +187,7 @@ static void dim2_write_ctr_mask(u32 ctr_addr, const u32 *mask, const u32 *value) dimcb_io_write(&g.dim2->MDWE2, mask[2]); dimcb_io_write(&g.dim2->MDWE3, mask[3]); - dimcb_io_write(&g.dim2->MADR, bit_mask(MADR_WNR_BIT) | ctr_addr); - - /* wait till transfer is completed */ - while ((dimcb_io_read(&g.dim2->MCTL) & 1) != 1) - continue; - - dimcb_io_write(&g.dim2->MCTL, 0); /* clear transfer complete */ + dim2_transfer_madr(bit_mask(MADR_WNR_BIT) | ctr_addr); } static inline void dim2_write_ctr(u32 ctr_addr, const u32 *value) |