From e67a09d199cb9348bec1398bcc9c363fc04e226a Mon Sep 17 00:00:00 2001 From: Jernej Skrabec Date: Mon, 29 Nov 2021 19:26:27 +0100 Subject: [PATCH] media: hantro: vp9: use double buffering if needed Some G2 variants need double buffering to be enabled in order to work correctly, like that found in Allwinner H6 SoC. Add platform quirk for that. Reviewed-by: Andrzej Pietrasiewicz Signed-off-by: Jernej Skrabec Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/hantro/hantro.h | 2 ++ drivers/staging/media/hantro/hantro_g2_regs.h | 1 + drivers/staging/media/hantro/hantro_g2_vp9_dec.c | 2 ++ 3 files changed, 5 insertions(+) diff --git a/drivers/staging/media/hantro/hantro.h b/drivers/staging/media/hantro/hantro.h index 33eb3e092cc16..d03824fa3222c 100644 --- a/drivers/staging/media/hantro/hantro.h +++ b/drivers/staging/media/hantro/hantro.h @@ -73,6 +73,7 @@ struct hantro_irq { * @num_clocks: number of clocks in the array * @reg_names: array of register range names * @num_regs: number of register range names in the array + * @double_buffer: core needs double buffering */ struct hantro_variant { unsigned int enc_offset; @@ -94,6 +95,7 @@ struct hantro_variant { int num_clocks; const char * const *reg_names; int num_regs; + unsigned int double_buffer : 1; }; /** diff --git a/drivers/staging/media/hantro/hantro_g2_regs.h b/drivers/staging/media/hantro/hantro_g2_regs.h index 9c857dd1ad9b3..15a391a4650e6 100644 --- a/drivers/staging/media/hantro/hantro_g2_regs.h +++ b/drivers/staging/media/hantro/hantro_g2_regs.h @@ -270,6 +270,7 @@ #define g2_apf_threshold G2_DEC_REG(55, 0, 0xffff) #define g2_clk_gate_e G2_DEC_REG(58, 16, 0x1) +#define g2_double_buffer_e G2_DEC_REG(58, 15, 0x1) #define g2_buswidth G2_DEC_REG(58, 8, 0x7) #define g2_max_burst G2_DEC_REG(58, 0, 0xff) diff --git a/drivers/staging/media/hantro/hantro_g2_vp9_dec.c b/drivers/staging/media/hantro/hantro_g2_vp9_dec.c index e04242d10fa24..d4fc649a4da13 100644 --- a/drivers/staging/media/hantro/hantro_g2_vp9_dec.c +++ b/drivers/staging/media/hantro/hantro_g2_vp9_dec.c @@ -847,6 +847,8 @@ config_registers(struct hantro_ctx *ctx, const struct v4l2_ctrl_vp9_frame *dec_p hantro_reg_write(ctx->dev, &g2_clk_gate_e, 1); hantro_reg_write(ctx->dev, &g2_max_cb_size, 6); hantro_reg_write(ctx->dev, &g2_min_cb_size, 3); + if (ctx->dev->variant->double_buffer) + hantro_reg_write(ctx->dev, &g2_double_buffer_e, 1); config_output(ctx, dst, dec_params); -- 2.30.2