| Message ID | 1307443550-25549-5-git-send-email-s.hauer@pengutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, Jun 7, 2011 at 6:45 AM, Sascha Hauer <s.hauer@pengutronix.de> wrote: > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> > --- > drivers/gpu/drm/Kconfig | 6 + > drivers/gpu/drm/i2c/Makefile | 3 + > drivers/gpu/drm/i2c/sii902x.c | 334 +++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 343 insertions(+), 0 deletions(-) > create mode 100644 drivers/gpu/drm/i2c/sii902x.c > > diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig > index bcd9a27..01d5444 100644 > --- a/drivers/gpu/drm/Kconfig > +++ b/drivers/gpu/drm/Kconfig > @@ -166,6 +166,12 @@ config DRM_SAVAGE > Choose this option if you have a Savage3D/4/SuperSavage/Pro/Twister > chipset. If M is selected the module will be called savage. > > +config DRM_I2C_SII902X > + tristate "sii902x" > + depends on DRM && I2C > + help > + Support for sii902x DVI/HDMI encoder chips > + > config DRM_IMX_IPUV3 > tristate "i.MX IPUv3" > depends on DRM && ARCH_MXC > diff --git a/drivers/gpu/drm/i2c/Makefile b/drivers/gpu/drm/i2c/Makefile > index 9286256..a7a8d40 100644 > --- a/drivers/gpu/drm/i2c/Makefile > +++ b/drivers/gpu/drm/i2c/Makefile > @@ -5,3 +5,6 @@ obj-$(CONFIG_DRM_I2C_CH7006) += ch7006.o > > sil164-y := sil164_drv.o > obj-$(CONFIG_DRM_I2C_SIL164) += sil164.o > + > +sii902x := sii902x_drv.o > +obj-$(CONFIG_DRM_I2C_SII902X) += sii902x.o > diff --git a/drivers/gpu/drm/i2c/sii902x.c b/drivers/gpu/drm/i2c/sii902x.c > new file mode 100644 > index 0000000..7928533 > --- /dev/null > +++ b/drivers/gpu/drm/i2c/sii902x.c > @@ -0,0 +1,334 @@ > +/* > + * Copyright (C) 2010 Francisco Jerez. Update the copyright? Alex > + * All Rights Reserved. > + * > + * Permission is hereby granted, free of charge, to any person obtaining > + * a copy of this software and associated documentation files (the > + * "Software"), to deal in the Software without restriction, including > + * without limitation the rights to use, copy, modify, merge, publish, > + * distribute, sublicense, and/or sell copies of the Software, and to > + * permit persons to whom the Software is furnished to do so, subject to > + * the following conditions: > + * > + * The above copyright notice and this permission notice (including the > + * next paragraph) shall be included in all copies or substantial > + * portions of the Software. > + * > + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, > + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF > + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. > + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE > + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION > + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION > + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. > + * > + */ > + > +#include <drm/drmP.h> > +#include <drm/drm_crtc_helper.h> > +#include <drm/drm_encoder_slave.h> > +#include <drm/drm_encon.h> > + > +struct sii902x_encoder_params { > +}; > + > +struct sii902x_priv { > + struct sii902x_encoder_params config; > + struct i2c_client *client; > + struct drm_encoder_connector encon; > +}; > + > +#define to_sii902x(x) container_of(x, struct sii902x_priv, encon) > + > +static int sii902x_write(struct i2c_client *client, uint8_t addr, uint8_t val) > +{ > + int ret; > + > + ret = i2c_smbus_write_byte_data(client, addr, val); > + if (ret) { > + dev_dbg(&client->dev, "%s failed with %d\n", __func__, ret); > + } > + return ret; > +} > + > +static uint8_t sii902x_read(struct i2c_client *client, uint8_t addr) > +{ > + int dat; > + > + dat = i2c_smbus_read_byte_data(client, addr); > + > + return dat; > +} > + > +static int hdmi_cap = 0; /* FIXME */ > + > +static void sii902x_poweron(struct sii902x_priv *priv) > +{ > + struct i2c_client *client = priv->client; > + > + /* Turn on DVI or HDMI */ > + if (hdmi_cap) > + sii902x_write(client, 0x1A, 0x01 | 4); > + else > + sii902x_write(client, 0x1A, 0x00); > + > + return; > +} > + > +static void sii902x_poweroff(struct sii902x_priv *priv) > +{ > + struct i2c_client *client = priv->client; > + > + /* disable tmds before changing resolution */ > + if (hdmi_cap) > + sii902x_write(client, 0x1A, 0x11); > + else > + sii902x_write(client, 0x1A, 0x10); > + > + return; > +} > + > +static int sii902x_get_modes(struct drm_encoder_connector *encon) > +{ > + struct sii902x_priv *priv = to_sii902x(encon); > + struct i2c_client *client = priv->client; > + struct i2c_adapter *adap = client->adapter; > + struct drm_connector *connector = &encon->connector; > + struct edid *edid; > + int ret; > + int old, dat, cnt = 100; > + > + old = sii902x_read(client, 0x1A); > + > + sii902x_write(client, 0x1A, old | 0x4); > + do { > + cnt--; > + msleep(10); > + dat = sii902x_read(client, 0x1A); > + } while ((!(dat & 0x2)) && cnt); > + > + if (!cnt) > + return -ETIMEDOUT; > + > + sii902x_write(client, 0x1A, old | 0x06); > + > + edid = drm_get_edid(connector, adap); > + if (edid) { > + drm_mode_connector_update_edid_property(connector, edid); > + ret = drm_add_edid_modes(connector, edid); > + connector->display_info.raw_edid = NULL; > + kfree(edid); > + } > + > + cnt = 100; > + do { > + cnt--; > + sii902x_write(client, 0x1A, old & ~0x6); > + msleep(10); > + dat = sii902x_read(client, 0x1A); > + } while ((dat & 0x6) && cnt); > + > + if (!cnt) > + ret = -1; > + > + sii902x_write(client, 0x1A, old); > + > + return 0; > +} > + > +static irqreturn_t sii902x_detect_handler(int irq, void *data) > +{ > + struct sii902x_priv *priv = data; > + struct i2c_client *client = priv->client; > + int dat; > + > + dat = sii902x_read(client, 0x3D); > + if (dat & 0x1) { > + /* cable connection changes */ > + if (dat & 0x4) { > + printk("plugin\n"); > + } else { > + printk("plugout\n"); > + } > + } > + sii902x_write(client, 0x3D, dat); > + > + return IRQ_HANDLED; > +} > + > + > +static int sii902x_mode_valid(struct drm_encoder_connector *encon, > + struct drm_display_mode *mode) > +{ > + return MODE_OK; > +} > + > +static void sii902x_mode_set(struct drm_encoder_connector *encon, > + struct drm_display_mode *mode, > + struct drm_display_mode *adjusted_mode) > +{ > + struct sii902x_priv *priv = to_sii902x(encon); > + struct i2c_client *client = priv->client; > + u16 data[4]; > + u32 refresh; > + u8 *tmp; > + int i; > + > + /* Power up */ > + sii902x_write(client, 0x1E, 0x00); > + > + dev_dbg(&client->dev, "%s: %dx%d, pixclk %d\n", __func__, > + mode->hdisplay, mode->vdisplay, > + mode->clock * 1000); > + > + /* set TPI video mode */ > + data[0] = mode->clock / 10; > + data[2] = mode->htotal; > + data[3] = mode->vtotal; > + refresh = data[2] * data[3]; > + refresh = (mode->clock * 1000) / refresh; > + data[1] = refresh * 100; > + tmp = (u8 *)data; > + for (i = 0; i < 8; i++) > + sii902x_write(client, i, tmp[i]); > + > + /* input bus/pixel: full pixel wide (24bit), rising edge */ > + sii902x_write(client, 0x08, 0x70); > + /* Set input format to RGB */ > + sii902x_write(client, 0x09, 0x00); > + /* set output format to RGB */ > + sii902x_write(client, 0x0A, 0x00); > + /* audio setup */ > + sii902x_write(client, 0x25, 0x00); > + sii902x_write(client, 0x26, 0x40); > + sii902x_write(client, 0x27, 0x00); > +} > + > +static void sii902x_dpms(struct drm_encoder_connector *encon, int mode) > +{ > + struct sii902x_priv *priv = to_sii902x(encon); > + > + if (mode) > + sii902x_poweroff(priv); > + else > + sii902x_poweron(priv); > +} > + > +static void sii902x_prepare(struct drm_encoder_connector *encon) > +{ > + struct sii902x_priv *priv = to_sii902x(encon); > + > + sii902x_poweroff(priv); > +} > + > +static void sii902x_commit(struct drm_encoder_connector *encon) > +{ > + struct sii902x_priv *priv = to_sii902x(encon); > + > + sii902x_poweron(priv); > +} > + > +struct drm_encoder_connector_funcs sii902x_funcs = { > + .dpms = sii902x_dpms, > + .prepare = sii902x_prepare, > + .commit = sii902x_commit, > + .get_modes = sii902x_get_modes, > + .mode_valid = sii902x_mode_valid, > + .mode_set = sii902x_mode_set, > +}; > + > +/* I2C driver functions */ > + > +static int > +sii902x_probe(struct i2c_client *client, const struct i2c_device_id *id) > +{ > + int dat, ret; > + struct sii902x_priv *priv; > + const char *drm_name = "imx-drm.0"; /* FIXME: pass from pdata */ > + int encon_id = 0; /* FIXME: pass from pdata */ > + > + priv = kzalloc(sizeof(*priv), GFP_KERNEL); > + if (!priv) > + return -ENOMEM; > + > + priv->client = client; > + > + /* Set 902x in hardware TPI mode on and jump out of D3 state */ > + if (sii902x_write(client, 0xc7, 0x00) < 0) { > + dev_err(&client->dev, "SII902x: cound not find device\n"); > + return -ENODEV; > + } > + > + /* read device ID */ > + dat = sii902x_read(client, 0x1b); > + if (dat != 0xb0) { > + dev_err(&client->dev, "not found. id is 0x%02x instead of 0xb0\n", > + dat); > + return -ENODEV; > + } > + > + if (client->irq) { > + ret = request_threaded_irq(client->irq, NULL, sii902x_detect_handler, > + IRQF_TRIGGER_FALLING, > + "SII902x_det", priv); > + sii902x_write(client, 0x3c, 0x01); > + } > + > + priv->encon.funcs = &sii902x_funcs; > + > + i2c_set_clientdata(client, priv); > + > + drm_encon_register(drm_name, encon_id, &priv->encon); > + > + dev_info(&client->dev, "initialized\n"); > + > + return 0; > +} > + > +static int sii902x_remove(struct i2c_client *client) > +{ > + struct sii902x_priv *priv; > + int ret; > + > + priv = i2c_get_clientdata(client); > + > + ret = drm_encon_unregister(&priv->encon); > + if (ret) > + return ret; > + > + kfree(priv); > + > + return 0; > +} > + > +static struct i2c_device_id sii902x_ids[] = { > + { "sii9022", 0 }, > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, sii902x_ids); > + > +static struct i2c_driver sii902x_i2c_driver = { > + .probe = sii902x_probe, > + .remove = sii902x_remove, > + .driver = { > + .name = "sii902x", > + }, > + .id_table = sii902x_ids, > +}; > + > +static int __init sii902x_init(void) > +{ > + return i2c_add_driver(&sii902x_i2c_driver); > +} > + > +static void __exit sii902x_exit(void) > +{ > + i2c_del_driver(&sii902x_i2c_driver); > +} > + > +MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>"); > +MODULE_DESCRIPTION("Silicon Image sii902x HDMI transmitter driver"); > +MODULE_LICENSE("GPL"); > + > +module_init(sii902x_init); > +module_exit(sii902x_exit); > -- > 1.7.5.3 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/dri-devel >
2011/6/7 Sascha Hauer <s.hauer@pengutronix.de>: [...] > --- /dev/null > +++ b/drivers/gpu/drm/i2c/sii902x.c > @@ -0,0 +1,334 @@ [...] > +static int sii902x_write(struct i2c_client *client, uint8_t addr, uint8_t val) > +{ > + int ret; > + > + ret = i2c_smbus_write_byte_data(client, addr, val); > + if (ret) { > + dev_dbg(&client->dev, "%s failed with %d\n", __func__, ret); > + } > + return ret; > +} Return value is never tested. > +static irqreturn_t sii902x_detect_handler(int irq, void *data) > +{ > + struct sii902x_priv *priv = data; > + struct i2c_client *client = priv->client; > + int dat; > + > + dat = sii902x_read(client, 0x3D); > + if (dat & 0x1) { > + /* cable connection changes */ > + if (dat & 0x4) { > + printk("plugin\n"); > + } else { > + printk("plugout\n"); > + } Missing code? > + } > + sii902x_write(client, 0x3D, dat); > + > + return IRQ_HANDLED; > +} [...] > +/* I2C driver functions */ > + > +static int > +sii902x_probe(struct i2c_client *client, const struct i2c_device_id *id) > +{ > + int dat, ret; > + struct sii902x_priv *priv; > + const char *drm_name = "imx-drm.0"; /* FIXME: pass from pdata */ > + int encon_id = 0; /* FIXME: pass from pdata */ > + > + priv = kzalloc(sizeof(*priv), GFP_KERNEL); > + if (!priv) > + return -ENOMEM; > + > + priv->client = client; > + > + /* Set 902x in hardware TPI mode on and jump out of D3 state */ > + if (sii902x_write(client, 0xc7, 0x00) < 0) { > + dev_err(&client->dev, "SII902x: cound not find device\n"); > + return -ENODEV; Leaks priv. Same on other error paths. > + } [...] > + > + > +static int sii902x_remove(struct i2c_client *client) > +{ > + struct sii902x_priv *priv; > + int ret; > + > + priv = i2c_get_clientdata(client); > + > + ret = drm_encon_unregister(&priv->encon); > + if (ret) > + return ret; Leaks priv on error. > + > + kfree(priv); > + > + return 0; > +} [...] Best Regards, Micha? Miros?aw
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index bcd9a27..01d5444 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -166,6 +166,12 @@ config DRM_SAVAGE Choose this option if you have a Savage3D/4/SuperSavage/Pro/Twister chipset. If M is selected the module will be called savage. +config DRM_I2C_SII902X + tristate "sii902x" + depends on DRM && I2C + help + Support for sii902x DVI/HDMI encoder chips + config DRM_IMX_IPUV3 tristate "i.MX IPUv3" depends on DRM && ARCH_MXC diff --git a/drivers/gpu/drm/i2c/Makefile b/drivers/gpu/drm/i2c/Makefile index 9286256..a7a8d40 100644 --- a/drivers/gpu/drm/i2c/Makefile +++ b/drivers/gpu/drm/i2c/Makefile @@ -5,3 +5,6 @@ obj-$(CONFIG_DRM_I2C_CH7006) += ch7006.o sil164-y := sil164_drv.o obj-$(CONFIG_DRM_I2C_SIL164) += sil164.o + +sii902x := sii902x_drv.o +obj-$(CONFIG_DRM_I2C_SII902X) += sii902x.o diff --git a/drivers/gpu/drm/i2c/sii902x.c b/drivers/gpu/drm/i2c/sii902x.c new file mode 100644 index 0000000..7928533 --- /dev/null +++ b/drivers/gpu/drm/i2c/sii902x.c @@ -0,0 +1,334 @@ +/* + * Copyright (C) 2010 Francisco Jerez. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + */ + +#include <drm/drmP.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_encoder_slave.h> +#include <drm/drm_encon.h> + +struct sii902x_encoder_params { +}; + +struct sii902x_priv { + struct sii902x_encoder_params config; + struct i2c_client *client; + struct drm_encoder_connector encon; +}; + +#define to_sii902x(x) container_of(x, struct sii902x_priv, encon) + +static int sii902x_write(struct i2c_client *client, uint8_t addr, uint8_t val) +{ + int ret; + + ret = i2c_smbus_write_byte_data(client, addr, val); + if (ret) { + dev_dbg(&client->dev, "%s failed with %d\n", __func__, ret); + } + return ret; +} + +static uint8_t sii902x_read(struct i2c_client *client, uint8_t addr) +{ + int dat; + + dat = i2c_smbus_read_byte_data(client, addr); + + return dat; +} + +static int hdmi_cap = 0; /* FIXME */ + +static void sii902x_poweron(struct sii902x_priv *priv) +{ + struct i2c_client *client = priv->client; + + /* Turn on DVI or HDMI */ + if (hdmi_cap) + sii902x_write(client, 0x1A, 0x01 | 4); + else + sii902x_write(client, 0x1A, 0x00); + + return; +} + +static void sii902x_poweroff(struct sii902x_priv *priv) +{ + struct i2c_client *client = priv->client; + + /* disable tmds before changing resolution */ + if (hdmi_cap) + sii902x_write(client, 0x1A, 0x11); + else + sii902x_write(client, 0x1A, 0x10); + + return; +} + +static int sii902x_get_modes(struct drm_encoder_connector *encon) +{ + struct sii902x_priv *priv = to_sii902x(encon); + struct i2c_client *client = priv->client; + struct i2c_adapter *adap = client->adapter; + struct drm_connector *connector = &encon->connector; + struct edid *edid; + int ret; + int old, dat, cnt = 100; + + old = sii902x_read(client, 0x1A); + + sii902x_write(client, 0x1A, old | 0x4); + do { + cnt--; + msleep(10); + dat = sii902x_read(client, 0x1A); + } while ((!(dat & 0x2)) && cnt); + + if (!cnt) + return -ETIMEDOUT; + + sii902x_write(client, 0x1A, old | 0x06); + + edid = drm_get_edid(connector, adap); + if (edid) { + drm_mode_connector_update_edid_property(connector, edid); + ret = drm_add_edid_modes(connector, edid); + connector->display_info.raw_edid = NULL; + kfree(edid); + } + + cnt = 100; + do { + cnt--; + sii902x_write(client, 0x1A, old & ~0x6); + msleep(10); + dat = sii902x_read(client, 0x1A); + } while ((dat & 0x6) && cnt); + + if (!cnt) + ret = -1; + + sii902x_write(client, 0x1A, old); + + return 0; +} + +static irqreturn_t sii902x_detect_handler(int irq, void *data) +{ + struct sii902x_priv *priv = data; + struct i2c_client *client = priv->client; + int dat; + + dat = sii902x_read(client, 0x3D); + if (dat & 0x1) { + /* cable connection changes */ + if (dat & 0x4) { + printk("plugin\n"); + } else { + printk("plugout\n"); + } + } + sii902x_write(client, 0x3D, dat); + + return IRQ_HANDLED; +} + + +static int sii902x_mode_valid(struct drm_encoder_connector *encon, + struct drm_display_mode *mode) +{ + return MODE_OK; +} + +static void sii902x_mode_set(struct drm_encoder_connector *encon, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct sii902x_priv *priv = to_sii902x(encon); + struct i2c_client *client = priv->client; + u16 data[4]; + u32 refresh; + u8 *tmp; + int i; + + /* Power up */ + sii902x_write(client, 0x1E, 0x00); + + dev_dbg(&client->dev, "%s: %dx%d, pixclk %d\n", __func__, + mode->hdisplay, mode->vdisplay, + mode->clock * 1000); + + /* set TPI video mode */ + data[0] = mode->clock / 10; + data[2] = mode->htotal; + data[3] = mode->vtotal; + refresh = data[2] * data[3]; + refresh = (mode->clock * 1000) / refresh; + data[1] = refresh * 100; + tmp = (u8 *)data; + for (i = 0; i < 8; i++) + sii902x_write(client, i, tmp[i]); + + /* input bus/pixel: full pixel wide (24bit), rising edge */ + sii902x_write(client, 0x08, 0x70); + /* Set input format to RGB */ + sii902x_write(client, 0x09, 0x00); + /* set output format to RGB */ + sii902x_write(client, 0x0A, 0x00); + /* audio setup */ + sii902x_write(client, 0x25, 0x00); + sii902x_write(client, 0x26, 0x40); + sii902x_write(client, 0x27, 0x00); +} + +static void sii902x_dpms(struct drm_encoder_connector *encon, int mode) +{ + struct sii902x_priv *priv = to_sii902x(encon); + + if (mode) + sii902x_poweroff(priv); + else + sii902x_poweron(priv); +} + +static void sii902x_prepare(struct drm_encoder_connector *encon) +{ + struct sii902x_priv *priv = to_sii902x(encon); + + sii902x_poweroff(priv); +} + +static void sii902x_commit(struct drm_encoder_connector *encon) +{ + struct sii902x_priv *priv = to_sii902x(encon); + + sii902x_poweron(priv); +} + +struct drm_encoder_connector_funcs sii902x_funcs = { + .dpms = sii902x_dpms, + .prepare = sii902x_prepare, + .commit = sii902x_commit, + .get_modes = sii902x_get_modes, + .mode_valid = sii902x_mode_valid, + .mode_set = sii902x_mode_set, +}; + +/* I2C driver functions */ + +static int +sii902x_probe(struct i2c_client *client, const struct i2c_device_id *id) +{ + int dat, ret; + struct sii902x_priv *priv; + const char *drm_name = "imx-drm.0"; /* FIXME: pass from pdata */ + int encon_id = 0; /* FIXME: pass from pdata */ + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->client = client; + + /* Set 902x in hardware TPI mode on and jump out of D3 state */ + if (sii902x_write(client, 0xc7, 0x00) < 0) { + dev_err(&client->dev, "SII902x: cound not find device\n"); + return -ENODEV; + } + + /* read device ID */ + dat = sii902x_read(client, 0x1b); + if (dat != 0xb0) { + dev_err(&client->dev, "not found. id is 0x%02x instead of 0xb0\n", + dat); + return -ENODEV; + } + + if (client->irq) { + ret = request_threaded_irq(client->irq, NULL, sii902x_detect_handler, + IRQF_TRIGGER_FALLING, + "SII902x_det", priv); + sii902x_write(client, 0x3c, 0x01); + } + + priv->encon.funcs = &sii902x_funcs; + + i2c_set_clientdata(client, priv); + + drm_encon_register(drm_name, encon_id, &priv->encon); + + dev_info(&client->dev, "initialized\n"); + + return 0; +} + +static int sii902x_remove(struct i2c_client *client) +{ + struct sii902x_priv *priv; + int ret; + + priv = i2c_get_clientdata(client); + + ret = drm_encon_unregister(&priv->encon); + if (ret) + return ret; + + kfree(priv); + + return 0; +} + +static struct i2c_device_id sii902x_ids[] = { + { "sii9022", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, sii902x_ids); + +static struct i2c_driver sii902x_i2c_driver = { + .probe = sii902x_probe, + .remove = sii902x_remove, + .driver = { + .name = "sii902x", + }, + .id_table = sii902x_ids, +}; + +static int __init sii902x_init(void) +{ + return i2c_add_driver(&sii902x_i2c_driver); +} + +static void __exit sii902x_exit(void) +{ + i2c_del_driver(&sii902x_i2c_driver); +} + +MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>"); +MODULE_DESCRIPTION("Silicon Image sii902x HDMI transmitter driver"); +MODULE_LICENSE("GPL"); + +module_init(sii902x_init); +module_exit(sii902x_exit);
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> --- drivers/gpu/drm/Kconfig | 6 + drivers/gpu/drm/i2c/Makefile | 3 + drivers/gpu/drm/i2c/sii902x.c | 334 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 343 insertions(+), 0 deletions(-) create mode 100644 drivers/gpu/drm/i2c/sii902x.c