[1/1] drm/exynos: Fix build error in exynos_hdmi.c

Commit Message

Sachin Kamat Feb. 4, 2014, 3:19 a.m. UTC

On 4 February 2014 05:05, Sean Paul <[e-mail]> wrote:
> On Mon, Feb 3, 2014 at 7:14 AM, Inki Dae <[e-mail]> wrote:
>> 2014-01-31 Josh Boyer <[e-mail]>:
>>> On Fri, Jan 31, 2014 at 1:09 AM, Sachin Kamat <[e-mail]> wrote:
>>>> 'hdmi_infoframe' is already defined in include/linux/hdmi.h.
>>>> Rename the local variable to avoid the following build error:
>>>> drivers/gpu/drm/exynos/exynos_hdmi.c:382:8: error: 'hdmi_infoframe' defined as wrong kind of tag
>>>>  struct hdmi_infoframe {
>>>>
>>>> Signed-off-by: Sachin Kamat <[e-mail]>
>>>> Reported-by: Josh Boyer <[e-mail]>
>>>
>>> This does fix the build error I saw.  I don't have hardware to test
>>> the results with, but it now compiles correctly.  Thanks for the quick
>>> turn around!
>>>
>>
>> Hi,
>>
>> Thanks for report and patch. But Sean posted already below patch,
>>     [PATCH v4 01/34] drm/exynos: Rename hdmi_infoframe to avoid collision
>>
>
> Yeah, sorry, I just tucked it in with the rest of my stuff :)

No worries as long as the issue gets addressed :)

However, since these patches are not yet merged, IMHO it would be
better to address this issue
by re-using the common definitions provided rather than having local
(duplicate) definitions for the same.
Below is the patch which I have also posted to the mailing list for
reference. Please check.

------------------------------------------------------------------------
        return readl(hdata->regs + reg_id);
@@ -682,7 +664,7 @@ static u8 hdmi_chksum(struct hdmi_context *hdata,
 }

 static void hdmi_reg_infoframe(struct hdmi_context *hdata,
-                       struct hdmi_infoframe *infoframe)
+                       union hdmi_infoframe *infoframe)
 {
        u32 hdr_sum;
        u8 chksum;
@@ -700,13 +682,15 @@ static void hdmi_reg_infoframe(struct hdmi_context *hdata,
                return;
        }

-       switch (infoframe->type) {
-       case HDMI_PACKET_TYPE_AVI:
+       switch (infoframe->any.type) {
+       case HDMI_INFOFRAME_TYPE_AVI:
                hdmi_reg_writeb(hdata, HDMI_AVI_CON, HDMI_AVI_CON_EVERY_VSYNC);
-               hdmi_reg_writeb(hdata, HDMI_AVI_HEADER0, infoframe->type);
-               hdmi_reg_writeb(hdata, HDMI_AVI_HEADER1, infoframe->ver);
-               hdmi_reg_writeb(hdata, HDMI_AVI_HEADER2, infoframe->len);
-               hdr_sum = infoframe->type + infoframe->ver + infoframe->len;
+               hdmi_reg_writeb(hdata, HDMI_AVI_HEADER0, infoframe->any.type);
+               hdmi_reg_writeb(hdata, HDMI_AVI_HEADER1,
+                               infoframe->any.version);
+               hdmi_reg_writeb(hdata, HDMI_AVI_HEADER2, infoframe->any.length);
+               hdr_sum = infoframe->any.type + infoframe->any.version +
+                         infoframe->any.length;

                /* Output format zero hardcoded ,RGB YBCR selection */
                hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(1), 0 << 5 |
@@ -722,18 +706,20 @@ static void hdmi_reg_infoframe(struct hdmi_context *hdata,
                hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(4), vic);

                chksum = hdmi_chksum(hdata, HDMI_AVI_BYTE(1),
-                                       infoframe->len, hdr_sum);
+                                       infoframe->any.length, hdr_sum);
                DRM_DEBUG_KMS("AVI checksum = 0x%x\n", chksum);
                hdmi_reg_writeb(hdata, HDMI_AVI_CHECK_SUM, chksum);
                break;
-       case HDMI_PACKET_TYPE_AUI:
+       case HDMI_INFOFRAME_TYPE_AUDIO:
                hdmi_reg_writeb(hdata, HDMI_AUI_CON, 0x02);
-               hdmi_reg_writeb(hdata, HDMI_AUI_HEADER0, infoframe->type);
-               hdmi_reg_writeb(hdata, HDMI_AUI_HEADER1, infoframe->ver);
-               hdmi_reg_writeb(hdata, HDMI_AUI_HEADER2, infoframe->len);
-               hdr_sum = infoframe->type + infoframe->ver + infoframe->len;
+               hdmi_reg_writeb(hdata, HDMI_AUI_HEADER0, infoframe->any.type);
+               hdmi_reg_writeb(hdata, HDMI_AUI_HEADER1,
+                               infoframe->any.version);
+               hdmi_reg_writeb(hdata, HDMI_AUI_HEADER2, infoframe->any.length);
+               hdr_sum = infoframe->any.type + infoframe->any.version +
+                         infoframe->any.length;
                chksum = hdmi_chksum(hdata, HDMI_AUI_BYTE(1),
-                                       infoframe->len, hdr_sum);
+                                       infoframe->any.length, hdr_sum);
                DRM_DEBUG_KMS("AUI checksum = 0x%x\n", chksum);
                hdmi_reg_writeb(hdata, HDMI_AUI_CHECK_SUM, chksum);
                break;
@@ -985,7 +971,7 @@ static void hdmi_conf_reset(struct hdmi_context *hdata)

 static void hdmi_conf_init(struct hdmi_context *hdata)
 {
-       struct hdmi_infoframe infoframe;
+       union hdmi_infoframe infoframe;

        /* disable HPD interrupts from HDMI IP block, use GPIO instead */
        hdmi_reg_writemask(hdata, HDMI_INTC_CON, 0, HDMI_INTC_EN_GLOBAL |
@@ -1021,14 +1007,14 @@ static void hdmi_conf_init(struct hdmi_context *hdata)
                hdmi_reg_writeb(hdata, HDMI_V13_AUI_CON, 0x02);
                hdmi_reg_writeb(hdata, HDMI_V13_ACR_CON, 0x04);
        } else {
-               infoframe.type = HDMI_PACKET_TYPE_AVI;
-               infoframe.ver = HDMI_AVI_VERSION;
-               infoframe.len = HDMI_AVI_LENGTH;
+               infoframe.any.type = HDMI_INFOFRAME_TYPE_AVI;
+               infoframe.any.version = HDMI_AVI_VERSION;
+               infoframe.any.length = HDMI_AVI_LENGTH;
                hdmi_reg_infoframe(hdata, &infoframe);

-               infoframe.type = HDMI_PACKET_TYPE_AUI;
-               infoframe.ver = HDMI_AUI_VERSION;
-               infoframe.len = HDMI_AUI_LENGTH;
+               infoframe.any.type = HDMI_INFOFRAME_TYPE_AUDIO;
+               infoframe.any.version = HDMI_AUI_VERSION;
+               infoframe.any.length = HDMI_AUI_LENGTH;
                hdmi_reg_infoframe(hdata, &infoframe);

                /* enable AVI packet every vsync, fixes purple line problem */

Patch

diff --git a/drivers/gpu/drm/exynos/
exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index a0e10ae..c021ddc 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -34,6 +34,7 @@ 
 #include <linux/io.h>
 #include <linux/of.h>
 #include <linux/of_gpio.h>
+#include <linux/hdmi.h>

 #include <drm/exynos_drm.h>

@@ -59,19 +60,6 @@ 
 #define HDMI_AUI_VERSION       0x01
 #define HDMI_AUI_LENGTH        0x0A

-/* HDMI infoframe to configure HDMI out packet header, AUI and AVI */
-enum HDMI_PACKET_TYPE {
-       /* refer to Table 5-8 Packet Type in HDMI specification v1.4a */
-       /* InfoFrame packet type */
-       HDMI_PACKET_TYPE_INFOFRAME = 0x80,
-       /* Vendor-Specific InfoFrame */
-       HDMI_PACKET_TYPE_VSI = HDMI_PACKET_TYPE_INFOFRAME + 1,
-       /* Auxiliary Video information InfoFrame */
-       HDMI_PACKET_TYPE_AVI = HDMI_PACKET_TYPE_INFOFRAME + 2,
-       /* Audio information InfoFrame */
-       HDMI_PACKET_TYPE_AUI = HDMI_PACKET_TYPE_INFOFRAME + 4
-};
-
 enum hdmi_type {
        HDMI_TYPE13,
        HDMI_TYPE14,
@@ -379,12 +367,6 @@  static const struct hdmiphy_config
hdmiphy_v14_configs[] = {
        },
 };

-struct hdmi_infoframe {
-       enum HDMI_PACKET_TYPE type;
-       u8 ver;
-       u8 len;
-};
-
 static inline u32 hdmi_reg_read(struct hdmi_context *hdata, u32 reg_id)
 {