diff options
| author | Simon Glass | 2018-11-06 15:21:39 -0700 |
|---|---|---|
| committer | Simon Glass | 2018-11-20 19:14:22 -0700 |
| commit | 8729b1ae2cbda83059a55811614a2b0dbfdf7e53 (patch) | |
| tree | 65fa9cfd636340f9c9fc97bb3fa76de36c5bf1e2 /drivers/clk | |
| parent | 96794a3eaee9bf368efe475f0a040d0e08b09dc9 (diff) | |
misc: Update read() and write() methods to return bytes xfered
At present these functions return 0 on success. For some devices we want
to know how many bytes were transferred. It seems useful to adjust the API
to be more like the POSIX read() and write() functions.
Update these two methods, a test and all users.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Diffstat (limited to 'drivers/clk')
| -rw-r--r-- | drivers/clk/clk_vexpress_osc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/clk/clk_vexpress_osc.c b/drivers/clk/clk_vexpress_osc.c index 7fef4b2e312..c692a6d0b89 100644 --- a/drivers/clk/clk_vexpress_osc.c +++ b/drivers/clk/clk_vexpress_osc.c @@ -29,7 +29,7 @@ static ulong vexpress_osc_clk_get_rate(struct clk *clk) data = CLK_FUNCTION | priv->osc; err = misc_read(vexpress_cfg, 0, &data, sizeof(data)); - if (err) + if (err < 0) return err; return data; @@ -53,7 +53,7 @@ static ulong vexpress_osc_clk_set_rate(struct clk *clk, ulong rate) buffer[0] = CLK_FUNCTION | priv->osc; buffer[1] = rate; err = misc_write(vexpress_cfg, 0, buffer, 2 * sizeof(u32)); - if (err) + if (err < 0) return err; return rate; |