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Message-ID: <202509261315.Ut2kQNiR-lkp@intel.com>
Date: Fri, 26 Sep 2025 14:08:26 +0800
From: kernel test robot <lkp@...el.com>
To: Wenmeng Liu <wenmeng.liu@....qualcomm.com>,
Robert Foss <rfoss@...nel.org>, Todor Tomov <todor.too@...il.com>,
Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
Vladimir Zapolskiy <vladimir.zapolskiy@...aro.org>,
Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-msm@...r.kernel.org,
Wenmeng Liu <wenmeng.liu@....qualcomm.com>
Subject: Re: [PATCH v4 3/3] media: qcom: camss: tpg: Add TPG support for
SA8775P and QCS8300
Hi Wenmeng,
kernel test robot noticed the following build errors:
[auto build test ERROR on ce7f1a983b074f6cf8609068088ca3182c569ee4]
url: https://github.com/intel-lab-lkp/linux/commits/Wenmeng-Liu/media-qcom-camss-Add-support-for-TPG-common/20250925-083535
base: ce7f1a983b074f6cf8609068088ca3182c569ee4
patch link: https://lore.kernel.org/r/20250925-camss_tpg-v4-3-d2eb099902c8%40oss.qualcomm.com
patch subject: [PATCH v4 3/3] media: qcom: camss: tpg: Add TPG support for SA8775P and QCS8300
config: i386-buildonly-randconfig-005-20250926 (https://download.01.org/0day-ci/archive/20250926/202509261315.Ut2kQNiR-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250926/202509261315.Ut2kQNiR-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509261315.Ut2kQNiR-lkp@intel.com/
All errors (new ones prefixed by >>):
>> drivers/media/platform/qcom/camss/camss-tpg-gen1.c:112:9: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
112 | val = FIELD_PREP(TPG_VC_m_DT_n_CFG_0_FRAME_HEIGHT, input_format->height & 0xffff) |
| ^
drivers/media/platform/qcom/camss/camss-tpg-gen1.c:138:8: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
138 | val = FIELD_PREP(TPG_CTRL_TEST_EN, 1) |
| ^
>> drivers/media/platform/qcom/camss/camss-tpg-gen1.c:184:11: error: call to undeclared function 'FIELD_GET'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
184 | hw_gen = FIELD_GET(HW_VERSION_GENERATION, hw_version);
| ^
3 errors generated.
vim +/FIELD_PREP +112 drivers/media/platform/qcom/camss/camss-tpg-gen1.c
86
87 #define TPG_USER_SPECIFIED_PAYLOAD_DEFAULT 0xBE
88 #define TPG_HBI_CFG_DEFAULT 0x4701
89 #define TPG_VBI_CFG_DEFAULT 0x438
90 #define TPG_LFSR_SEED_DEFAULT 0x12345678
91 #define TPG_COLOR_BARS_CFG_STANDARD \
92 FIELD_PREP(TPG_VC_n_COLOR_BARS_CFG_ROTATE_PERIOD, 0xA)
93
94 static int tpg_stream_on(struct tpg_device *tpg)
95 {
96 struct tpg_testgen_config *tg = &tpg->testgen;
97 struct v4l2_mbus_framefmt *input_format;
98 const struct tpg_format_info *format;
99 u8 lane_cnt = tpg->res->lane_cnt;
100 u8 dt_cnt = 0;
101 u8 i;
102 u32 val;
103
104 /* Loop through all enabled VCs and configure stream for each */
105 for (i = 0; i < tpg->res->vc_cnt; i++) {
106 input_format = &tpg->fmt[MSM_TPG_PAD_SRC + i];
107 format = tpg_get_fmt_entry(tpg,
108 tpg->res->formats->formats,
109 tpg->res->formats->nformats,
110 input_format->code);
111
> 112 val = FIELD_PREP(TPG_VC_m_DT_n_CFG_0_FRAME_HEIGHT, input_format->height & 0xffff) |
113 FIELD_PREP(TPG_VC_m_DT_n_CFG_0_FRAME_WIDTH, input_format->width & 0xffff);
114 writel(val, tpg->base + TPG_VC_m_DT_n_CFG_0(i, dt_cnt));
115
116 val = FIELD_PREP(TPG_VC_m_DT_n_CFG_1_DATA_TYPE, format->data_type);
117 writel(val, tpg->base + TPG_VC_m_DT_n_CFG_1(i, dt_cnt));
118
119 val = FIELD_PREP(TPG_VC_m_DT_n_CFG_2_PAYLOAD_MODE, tg->mode - 1) |
120 FIELD_PREP(TPG_VC_m_DT_n_CFG_2_USER_SPECIFIED_PAYLOAD,
121 TPG_USER_SPECIFIED_PAYLOAD_DEFAULT) |
122 FIELD_PREP(TPG_VC_m_DT_n_CFG_2_ENCODE_FORMAT, format->encode_format);
123 writel(val, tpg->base + TPG_VC_m_DT_n_CFG_2(i, dt_cnt));
124
125 writel(TPG_COLOR_BARS_CFG_STANDARD, tpg->base + TPG_VC_n_COLOR_BARS_CFG(i));
126
127 writel(TPG_HBI_CFG_DEFAULT, tpg->base + TPG_VC_n_HBI_CFG(i));
128 writel(TPG_VBI_CFG_DEFAULT, tpg->base + TPG_VC_n_VBI_CFG(i));
129
130 writel(TPG_LFSR_SEED_DEFAULT, tpg->base + TPG_VC_n_LSFR_SEED(i));
131
132 /* configure one DT, infinite frames */
133 val = FIELD_PREP(TPG_VC_n_CFG0_VC_NUM, i) |
134 FIELD_PREP(TPG_VC_n_CFG0_NUM_FRAMES, 0);
135 writel(val, tpg->base + TPG_VC_n_CFG0(i));
136 }
137
138 val = FIELD_PREP(TPG_CTRL_TEST_EN, 1) |
139 FIELD_PREP(TPG_CTRL_PHY_SEL, 0) |
140 FIELD_PREP(TPG_CTRL_NUM_ACTIVE_LANES, lane_cnt - 1) |
141 FIELD_PREP(TPG_CTRL_VC_DT_PATTERN_ID, 0) |
142 FIELD_PREP(TPG_CTRL_NUM_ACTIVE_VC, tpg->res->vc_cnt - 1);
143 writel(val, tpg->base + TPG_CTRL);
144
145 return 0;
146 }
147
148 static void tpg_stream_off(struct tpg_device *tpg)
149 {
150 writel(0, tpg->base + TPG_CTRL);
151 writel(1, tpg->base + TPG_CLEAR);
152 }
153
154 static void tpg_configure_stream(struct tpg_device *tpg, u8 enable)
155 {
156 if (enable)
157 tpg_stream_on(tpg);
158 else
159 tpg_stream_off(tpg);
160 }
161
162 static int tpg_configure_testgen_pattern(struct tpg_device *tpg, s32 val)
163 {
164 if (val > 0 && val <= TPG_PAYLOAD_MODE_COLOR_BARS)
165 tpg->testgen.mode = val;
166
167 return 0;
168 }
169
170 /*
171 * tpg_hw_version - tpg hardware version query
172 * @tpg: tpg device
173 *
174 * Return HW version or error
175 */
176 static u32 tpg_hw_version(struct tpg_device *tpg)
177 {
178 u32 hw_version;
179 u32 hw_gen;
180 u32 hw_rev;
181 u32 hw_step;
182
183 hw_version = readl(tpg->base + TPG_HW_VERSION);
> 184 hw_gen = FIELD_GET(HW_VERSION_GENERATION, hw_version);
185 hw_rev = FIELD_GET(HW_VERSION_REVISION, hw_version);
186 hw_step = FIELD_GET(HW_VERSION_STEPPING, hw_version);
187 dev_dbg_once(tpg->camss->dev, "tpg HW Version = %u.%u.%u\n",
188 hw_gen, hw_rev, hw_step);
189
190 return hw_version;
191 }
192
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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