Re: [PATCH 12/18] drm/sun4i: Add Allwinner A31 MIPI-DSI controller support

kbuild test robot
2017-07-14T10:15:05Z

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Hi Maxime,

[auto build test ERROR on next-20170710]
[cannot apply to mripard/sunxi/for-next robh/for-next regmap/for-next v4.12 v4.12-rc7 v4.12-rc6 v4.12]
[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/Maxime-Ripard/drm-sun4i-Allwinner-MIPI-DSI-support/20170714-123103
config: arm-sunxi_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=arm

All errors (new ones prefixed by >>):

drivers/gpu/drm/sun4i/sun6i_mipi_dphy.c: In function 'sun6i_dphy_init':
>> drivers/gpu/drm/sun4i/sun6i_mipi_dphy.c:92:2: error: implicit declaration of function 'clk_set_rate_protect' [-Werror=implicit-function-declaration]
clk_set_rate_protect(dphy->mod_clk, 150000000);
^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/sun4i/sun6i_mipi_dphy.c: In function 'sun6i_dphy_exit':
>> drivers/gpu/drm/sun4i/sun6i_mipi_dphy.c:199:2: error: implicit declaration of function 'clk_rate_unprotect' [-Werror=implicit-function-declaration]
clk_rate_unprotect(dphy->mod_clk);
^~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
--
drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c: In function 'sun6i_dsi_probe':
>> drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:984:2: error: implicit declaration of function 'clk_set_rate_protect' [-Werror=implicit-function-declaration]
clk_set_rate_protect(dsi->mod_clk, 297000000);
^~~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c:1016:2: error: implicit declaration of function 'clk_rate_unprotect' [-Werror=implicit-function-declaration]
clk_rate_unprotect(dsi->mod_clk);
^~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +/clk_set_rate_protect +92 drivers/gpu/drm/sun4i/sun6i_mipi_dphy.c

87
88 int sun6i_dphy_init(struct sun6i_dphy *dphy, unsigned int lanes)
89 {
90 reset_control_deassert(dphy->reset);
91 clk_prepare_enable(dphy->mod_clk);
> 92 clk_set_rate_protect(dphy->mod_clk, 150000000);
93
94 regmap_write(dphy->regs, SUN6I_DPHY_TX_CTL_REG,
95 SUN6I_DPHY_TX_CTL_HS_TX_CLK_CONT);
96
97 regmap_write(dphy->regs, SUN6I_DPHY_TX_TIME0_REG,
98 SUN6I_DPHY_TX_TIME0_LP_CLK_DIV(14) |
99 SUN6I_DPHY_TX_TIME0_HS_PREPARE(6) |
100 SUN6I_DPHY_TX_TIME0_HS_TRAIL(10));
101
102 regmap_write(dphy->regs, SUN6I_DPHY_TX_TIME1_REG,
103 SUN6I_DPHY_TX_TIME1_CLK_PREPARE(7) |
104 SUN6I_DPHY_TX_TIME1_CLK_ZERO(50) |
105 SUN6I_DPHY_TX_TIME1_CLK_PRE(3) |
106 SUN6I_DPHY_TX_TIME1_CLK_POST(10));
107
108 regmap_write(dphy->regs, SUN6I_DPHY_TX_TIME2_REG,
109 SUN6I_DPHY_TX_TIME2_CLK_TRAIL(30));
110
111 regmap_write(dphy->regs, SUN6I_DPHY_TX_TIME3_REG, 0);
112
113 regmap_write(dphy->regs, SUN6I_DPHY_TX_TIME4_REG,
114 SUN6I_DPHY_TX_TIME4_HS_TX_ANA0(3) |
115 SUN6I_DPHY_TX_TIME4_HS_TX_ANA1(3));
116
117 /* FIXME: Number of lanes? */
118 regmap_write(dphy->regs, SUN6I_DPHY_GCTL_REG,
119 SUN6I_DPHY_GCTL_LANE_NUM(lanes) |
120 SUN6I_DPHY_GCTL_EN);
121
122 return 0;
123 }
124
125 int sun6i_dphy_power_on(struct sun6i_dphy *dphy, unsigned int lanes)
126 {
127 u8 lanes_mask = GENMASK(lanes - 1, 0);
128
129 regmap_write(dphy->regs, SUN6I_DPHY_ANA0_REG,
130 SUN6I_DPHY_ANA0_REG_PWS |
131 SUN6I_DPHY_ANA0_REG_DMPC |
132 SUN6I_DPHY_ANA0_REG_SLV(7) |
133 SUN6I_DPHY_ANA0_REG_DMPD(lanes_mask) |
134 SUN6I_DPHY_ANA0_REG_DEN(lanes_mask));
135
136 regmap_write(dphy->regs, SUN6I_DPHY_ANA1_REG,
137 SUN6I_DPHY_ANA1_REG_CSMPS(1) |
138 SUN6I_DPHY_ANA1_REG_SVTT(7));
139
140 regmap_write(dphy->regs, SUN6I_DPHY_ANA4_REG,
141 SUN6I_DPHY_ANA4_REG_CKDV(1) |
142 SUN6I_DPHY_ANA4_REG_TMSC(1) |
143 SUN6I_DPHY_ANA4_REG_TMSD(1) |
144 SUN6I_DPHY_ANA4_REG_TXDNSC(1) |
145 SUN6I_DPHY_ANA4_REG_TXDNSD(1) |
146 SUN6I_DPHY_ANA4_REG_TXPUSC(1) |
147 SUN6I_DPHY_ANA4_REG_TXPUSD(1) |
148 SUN6I_DPHY_ANA4_REG_DMPLVC |
149 SUN6I_DPHY_ANA4_REG_DMPLVD(lanes_mask));
150
151 regmap_write(dphy->regs, SUN6I_DPHY_ANA2_REG,
152 SUN6I_DPHY_ANA2_REG_ENIB);
153 udelay(5);
154
155 regmap_write(dphy->regs, SUN6I_DPHY_ANA3_REG,
156 SUN6I_DPHY_ANA3_EN_LDOR |
157 SUN6I_DPHY_ANA3_EN_LDOC |
158 SUN6I_DPHY_ANA3_EN_LDOD);
159 udelay(1);
160
161 regmap_update_bits(dphy->regs, SUN6I_DPHY_ANA3_REG,
162 SUN6I_DPHY_ANA3_EN_VTTC |
163 SUN6I_DPHY_ANA3_EN_VTTD_MASK,
164 SUN6I_DPHY_ANA3_EN_VTTC |
165 SUN6I_DPHY_ANA3_EN_VTTD(lanes_mask));
166 udelay(1);
167
168 regmap_update_bits(dphy->regs, SUN6I_DPHY_ANA3_REG,
169 SUN6I_DPHY_ANA3_EN_DIV,
170 SUN6I_DPHY_ANA3_EN_DIV);
171 udelay(1);
172
173 regmap_update_bits(dphy->regs, SUN6I_DPHY_ANA2_REG,
174 SUN6I_DPHY_ANA2_EN_CK_CPU,
175 SUN6I_DPHY_ANA2_EN_CK_CPU);
176 udelay(1);
177
178 regmap_update_bits(dphy->regs, SUN6I_DPHY_ANA1_REG,
179 SUN6I_DPHY_ANA1_REG_VTTMODE,
180 SUN6I_DPHY_ANA1_REG_VTTMODE);
181
182 regmap_update_bits(dphy->regs, SUN6I_DPHY_ANA2_REG,
183 SUN6I_DPHY_ANA2_EN_P2S_CPU_MASK,
184 SUN6I_DPHY_ANA2_EN_P2S_CPU(lanes_mask));
185
186 return 0;
187 }
188
189 int sun6i_dphy_power_off(struct sun6i_dphy *dphy)
190 {
191 regmap_update_bits(dphy->regs, SUN6I_DPHY_ANA1_REG,
192 SUN6I_DPHY_ANA1_REG_VTTMODE, 0);
193
194 return 0;
195 }
196
197 int sun6i_dphy_exit(struct sun6i_dphy *dphy)
198 {
> 199 clk_rate_unprotect(dphy->mod_clk);
200 clk_disable_unprepare(dphy->mod_clk);
201 reset_control_assert(dphy->reset);
202
203 return 0;
204 }
205

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