evie/android_kernel_oneplus_msm8998
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msm: mdss: dsi: propagate error on read command failures

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When panel read command API fails, propagate the error up so that
the caller can take any necessary actions.

CRs-Fixed: 960973
Change-Id: I397f4d47c6343abbab12833a47b753dc3bdb98f0
Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
This commit is contained in:
Aravind Venkateswaran 2016-01-26 14:37:04 -08:00 • committed by David Keitel
parent 501c2659d0
commit 6048c31f6d
2 changed files with 3 additions and 4 deletions
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2
drivers/video/fbdev/msm/mdss_dsi.h
View file

@ -617,7 +617,7 @@ void mdss_dsi_dln0_phy_err(struct mdss_dsi_ctrl_pdata *ctrl, bool print_en);
void mdss_dsi_lp_cd_rx(struct mdss_dsi_ctrl_pdata *ctrl); void mdss_dsi_lp_cd_rx(struct mdss_dsi_ctrl_pdata *ctrl);
void mdss_dsi_get_hw_revision(struct mdss_dsi_ctrl_pdata *ctrl); void mdss_dsi_get_hw_revision(struct mdss_dsi_ctrl_pdata *ctrl);
void mdss_dsi_read_phy_revision(struct mdss_dsi_ctrl_pdata *ctrl); void mdss_dsi_read_phy_revision(struct mdss_dsi_ctrl_pdata *ctrl);
u32 mdss_dsi_panel_cmd_read(struct mdss_dsi_ctrl_pdata *ctrl, char cmd0, int mdss_dsi_panel_cmd_read(struct mdss_dsi_ctrl_pdata *ctrl, char cmd0,
char cmd1, void (*fxn)(int), char *rbuf, int len); char cmd1, void (*fxn)(int), char *rbuf, int len);
int mdss_dsi_panel_init(struct device_node *node, int mdss_dsi_panel_init(struct device_node *node,
struct mdss_dsi_ctrl_pdata *ctrl_pdata, struct mdss_dsi_ctrl_pdata *ctrl_pdata,

5
drivers/video/fbdev/msm/mdss_dsi_panel.c
View file

@ -132,7 +132,7 @@ static struct dsi_cmd_desc dcs_read_cmd = {
dcs_cmd dcs_cmd
}; };
u32 mdss_dsi_panel_cmd_read(struct mdss_dsi_ctrl_pdata *ctrl, char cmd0, int mdss_dsi_panel_cmd_read(struct mdss_dsi_ctrl_pdata *ctrl, char cmd0,
char cmd1, void (*fxn)(int), char *rbuf, int len) char cmd1, void (*fxn)(int), char *rbuf, int len)
{ {
struct dcs_cmd_req cmdreq; struct dcs_cmd_req cmdreq;
@ -153,12 +153,11 @@ u32 mdss_dsi_panel_cmd_read(struct mdss_dsi_ctrl_pdata *ctrl, char cmd0,
cmdreq.rlen = len; cmdreq.rlen = len;
cmdreq.rbuf = rbuf; cmdreq.rbuf = rbuf;
cmdreq.cb = fxn; /* call back */ cmdreq.cb = fxn; /* call back */
mdss_dsi_cmdlist_put(ctrl, &cmdreq);
/* /*
* blocked here, until call back called * blocked here, until call back called
*/ */
return 0; return mdss_dsi_cmdlist_put(ctrl, &cmdreq);
} }
static void mdss_dsi_panel_cmds_send(struct mdss_dsi_ctrl_pdata *ctrl, static void mdss_dsi_panel_cmds_send(struct mdss_dsi_ctrl_pdata *ctrl,