From bff782d78a96ff9bd50fd6d726fdb9d4b033795e Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Fri, 16 Dec 2016 22:47:54 -0200 Subject: [PATCH] [media] davinci: VPIF: fix module loading, init errors Fix problems with automatic module loading by adding MODULE_ALIAS. Also fix various load-time errors cause by incorrect or not present platform_data. Acked-by: Sakari Ailus Signed-off-by: Kevin Hilman Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/davinci/vpif.c | 5 ++++- drivers/media/platform/davinci/vpif_capture.c | 13 +++++++++++++ drivers/media/platform/davinci/vpif_display.c | 6 ++++++ 3 files changed, 23 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/davinci/vpif.c b/drivers/media/platform/davinci/vpif.c index 0380cf2e5775..f50148dcba64 100644 --- a/drivers/media/platform/davinci/vpif.c +++ b/drivers/media/platform/davinci/vpif.c @@ -32,6 +32,9 @@ MODULE_DESCRIPTION("TI DaVinci Video Port Interface driver"); MODULE_LICENSE("GPL"); +#define VPIF_DRIVER_NAME "vpif" +MODULE_ALIAS("platform:" VPIF_DRIVER_NAME); + #define VPIF_CH0_MAX_MODES 22 #define VPIF_CH1_MAX_MODES 2 #define VPIF_CH2_MAX_MODES 15 @@ -466,7 +469,7 @@ static const struct dev_pm_ops vpif_pm = { static struct platform_driver vpif_driver = { .driver = { - .name = "vpif", + .name = VPIF_DRIVER_NAME, .pm = vpif_pm_ops, }, .remove = vpif_remove, diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c index 08d3c14dfdd3..d489f047a6fa 100644 --- a/drivers/media/platform/davinci/vpif_capture.c +++ b/drivers/media/platform/davinci/vpif_capture.c @@ -41,6 +41,7 @@ module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Debug level 0-1"); #define VPIF_DRIVER_NAME "vpif_capture" +MODULE_ALIAS("platform:" VPIF_DRIVER_NAME); /* global variables */ static struct vpif_device vpif_obj = { {NULL} }; @@ -643,6 +644,10 @@ static int vpif_input_to_subdev( vpif_dbg(2, debug, "vpif_input_to_subdev\n"); + if (!chan_cfg) + return -1; + if (input_index >= chan_cfg->input_count) + return -1; subdev_name = chan_cfg->inputs[input_index].subdev_name; if (!subdev_name) return -1; @@ -681,6 +686,9 @@ static int vpif_set_input( if (sd_index >= 0) { sd = vpif_obj.sd[sd_index]; subdev_info = &vpif_cfg->subdev_info[sd_index]; + } else { + /* no subdevice, no input to setup */ + return 0; } /* first setup input path from sub device to vpif */ @@ -1426,6 +1434,11 @@ static __init int vpif_probe(struct platform_device *pdev) int res_idx = 0; int i, err; + if (!pdev->dev.platform_data) { + dev_warn(&pdev->dev, "Missing platform data. Giving up.\n"); + return -EINVAL; + } + vpif_dev = &pdev->dev; err = initialize_vpif(); diff --git a/drivers/media/platform/davinci/vpif_display.c b/drivers/media/platform/davinci/vpif_display.c index e5f18448dbf7..50c30731bb78 100644 --- a/drivers/media/platform/davinci/vpif_display.c +++ b/drivers/media/platform/davinci/vpif_display.c @@ -42,6 +42,7 @@ module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Debug level 0-1"); #define VPIF_DRIVER_NAME "vpif_display" +MODULE_ALIAS("platform:" VPIF_DRIVER_NAME); /* Is set to 1 in case of SDTV formats, 2 in case of HDTV formats. */ static int ycmux_mode; @@ -1244,6 +1245,11 @@ static __init int vpif_probe(struct platform_device *pdev) int res_idx = 0; int i, err; + if (!pdev->dev.platform_data) { + dev_warn(&pdev->dev, "Missing platform data. Giving up.\n"); + return -EINVAL; + } + vpif_dev = &pdev->dev; err = initialize_vpif(); -- 2.20.1