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Date: Sun, 27 May 2018 22:04:32 +0800
From: kbuild test robot <lkp@...el.com>
To: David Lechner <david@...hnology.com>
Cc: kbuild-all@...org, dri-devel@...ts.freedesktop.org,
devicetree@...r.kernel.org, Mark Rutland <mark.rutland@....com>,
limor@...yada.net, David Lechner <david@...hnology.com>,
linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
Nitin Patil <nitin@...dsensors.com>
Subject: Re: [PATCH v2 4/4] drm/tinydrm: new driver for ILI9341 display panels
Hi David,
I love your patch! Yet something to improve:
[auto build test ERROR on linus/master]
[also build test ERROR on v4.17-rc6]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/David-Lechner/drm-tinydrm-new-dirver-for-ILI9341-displays/20180527-182036
config: i386-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
All errors (new ones prefixed by >>):
drivers/gpu/drm/tinydrm/ili9341.c: In function 'yx240qv29_enable':
>> drivers/gpu/drm/tinydrm/ili9341.c:128:2: error: too many arguments to function 'mipi_dbi_enable_flush'
mipi_dbi_enable_flush(mipi, crtc_state, plane_state);
^~~~~~~~~~~~~~~~~~~~~
In file included from drivers/gpu/drm/tinydrm/ili9341.c:21:0:
include/drm/tinydrm/mipi-dbi.h:70:6: note: declared here
void mipi_dbi_enable_flush(struct mipi_dbi *mipi);
^~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/tinydrm/ili9341.c: At top level:
>> drivers/gpu/drm/tinydrm/ili9341.c:132:12: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
.enable = yx240qv29_enable,
^~~~~~~~~~~~~~~~
drivers/gpu/drm/tinydrm/ili9341.c:132:12: note: (near initialization for 'ili9341_pipe_funcs.enable')
>> drivers/gpu/drm/tinydrm/ili9341.c:135:16: error: 'drm_gem_fb_simple_display_pipe_prepare_fb' undeclared here (not in a function); did you mean 'tinydrm_display_pipe_prepare_fb'?
.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
tinydrm_display_pipe_prepare_fb
cc1: some warnings being treated as errors
vim +/mipi_dbi_enable_flush +128 drivers/gpu/drm/tinydrm/ili9341.c
17
18 #include <drm/drm_fb_helper.h>
19 #include <drm/drm_gem_framebuffer_helper.h>
20 #include <drm/drm_modeset_helper.h>
> 21 #include <drm/tinydrm/mipi-dbi.h>
22 #include <drm/tinydrm/tinydrm-helpers.h>
23 #include <video/mipi_display.h>
24
25 #define ILI9341_FRMCTR1 0xb1
26 #define ILI9341_DISCTRL 0xb6
27 #define ILI9341_ETMOD 0xb7
28
29 #define ILI9341_PWCTRL1 0xc0
30 #define ILI9341_PWCTRL2 0xc1
31 #define ILI9341_VMCTRL1 0xc5
32 #define ILI9341_VMCTRL2 0xc7
33 #define ILI9341_PWCTRLA 0xcb
34 #define ILI9341_PWCTRLB 0xcf
35
36 #define ILI9341_PGAMCTRL 0xe0
37 #define ILI9341_NGAMCTRL 0xe1
38 #define ILI9341_DTCTRLA 0xe8
39 #define ILI9341_DTCTRLB 0xea
40 #define ILI9341_PWRSEQ 0xed
41
42 #define ILI9341_EN3GAM 0xf2
43 #define ILI9341_PUMPCTRL 0xf7
44
45 #define ILI9341_MADCTL_BGR BIT(3)
46 #define ILI9341_MADCTL_MV BIT(5)
47 #define ILI9341_MADCTL_MX BIT(6)
48 #define ILI9341_MADCTL_MY BIT(7)
49
50 static void yx240qv29_enable(struct drm_simple_display_pipe *pipe,
51 struct drm_crtc_state *crtc_state,
52 struct drm_plane_state *plane_state)
53 {
54 struct tinydrm_device *tdev = pipe_to_tinydrm(pipe);
55 struct mipi_dbi *mipi = mipi_dbi_from_tinydrm(tdev);
56 u8 addr_mode;
57 int ret;
58
59 DRM_DEBUG_KMS("\n");
60
61 ret = mipi_dbi_poweron_conditional_reset(mipi);
62 if (ret < 0)
63 return;
64 if (ret == 1)
65 goto out_enable;
66
67 mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_OFF);
68
69 mipi_dbi_command(mipi, ILI9341_PWCTRLB, 0x00, 0xc1, 0x30);
70 mipi_dbi_command(mipi, ILI9341_PWRSEQ, 0x64, 0x03, 0x12, 0x81);
71 mipi_dbi_command(mipi, ILI9341_DTCTRLA, 0x85, 0x00, 0x78);
72 mipi_dbi_command(mipi, ILI9341_PWCTRLA, 0x39, 0x2c, 0x00, 0x34, 0x02);
73 mipi_dbi_command(mipi, ILI9341_PUMPCTRL, 0x20);
74 mipi_dbi_command(mipi, ILI9341_DTCTRLB, 0x00, 0x00);
75
76 /* Power Control */
77 mipi_dbi_command(mipi, ILI9341_PWCTRL1, 0x23);
78 mipi_dbi_command(mipi, ILI9341_PWCTRL2, 0x10);
79 /* VCOM */
80 mipi_dbi_command(mipi, ILI9341_VMCTRL1, 0x3e, 0x28);
81 mipi_dbi_command(mipi, ILI9341_VMCTRL2, 0x86);
82
83 /* Memory Access Control */
84 mipi_dbi_command(mipi, MIPI_DCS_SET_PIXEL_FORMAT, MIPI_DCS_PIXEL_FMT_16BIT);
85
86 /* Frame Rate */
87 mipi_dbi_command(mipi, ILI9341_FRMCTR1, 0x00, 0x1b);
88
89 /* Gamma */
90 mipi_dbi_command(mipi, ILI9341_EN3GAM, 0x00);
91 mipi_dbi_command(mipi, MIPI_DCS_SET_GAMMA_CURVE, 0x01);
92 mipi_dbi_command(mipi, ILI9341_PGAMCTRL,
93 0x0f, 0x31, 0x2b, 0x0c, 0x0e, 0x08, 0x4e, 0xf1,
94 0x37, 0x07, 0x10, 0x03, 0x0e, 0x09, 0x00);
95 mipi_dbi_command(mipi, ILI9341_NGAMCTRL,
96 0x00, 0x0e, 0x14, 0x03, 0x11, 0x07, 0x31, 0xc1,
97 0x48, 0x08, 0x0f, 0x0c, 0x31, 0x36, 0x0f);
98
99 /* DDRAM */
100 mipi_dbi_command(mipi, ILI9341_ETMOD, 0x07);
101
102 /* Display */
103 mipi_dbi_command(mipi, ILI9341_DISCTRL, 0x08, 0x82, 0x27, 0x00);
104 mipi_dbi_command(mipi, MIPI_DCS_EXIT_SLEEP_MODE);
105 msleep(100);
106
107 mipi_dbi_command(mipi, MIPI_DCS_SET_DISPLAY_ON);
108 msleep(100);
109
110 out_enable:
111 switch (mipi->rotation) {
112 default:
113 addr_mode = ILI9341_MADCTL_MX;
114 break;
115 case 90:
116 addr_mode = ILI9341_MADCTL_MV;
117 break;
118 case 180:
119 addr_mode = ILI9341_MADCTL_MY;
120 break;
121 case 270:
122 addr_mode = ILI9341_MADCTL_MV | ILI9341_MADCTL_MY |
123 ILI9341_MADCTL_MX;
124 break;
125 }
126 addr_mode |= ILI9341_MADCTL_BGR;
127 mipi_dbi_command(mipi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode);
> 128 mipi_dbi_enable_flush(mipi, crtc_state, plane_state);
129 }
130
131 static const struct drm_simple_display_pipe_funcs ili9341_pipe_funcs = {
> 132 .enable = yx240qv29_enable,
133 .disable = mipi_dbi_pipe_disable,
134 .update = tinydrm_display_pipe_update,
> 135 .prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
136 };
137
---
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