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Commit 2470fecc authored by Jean-Francois Moine's avatar Jean-Francois Moine Committed by Russell King
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drm/i2c: tda998x: adjust the audio clock divider for S/PDIF 



According to some tests on the Cubox (Marvell Armada 510 + TDA19988),
the S/PDIF input asks for a greater audio clock divider.

Tested-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: default avatarJean-Francois Moine <moinejf@free.fr>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent a8b517e5

drivers/gpu/drm/i2c/tda998x_drv.c

+7 −3
Original line number Diff line number Diff line
@@ -680,10 +680,14 @@ tda998x_configure_audio(struct tda998x_priv *priv, 
	 * There is no detailed info in the datasheet, so we just

	 * assume 100MHz requires larger divider.

	 */

	if (mode->clock > 100000)

		adiv = AUDIO_DIV_SERCLK_16;

	else

	adiv = AUDIO_DIV_SERCLK_8;

	if (mode->clock > 100000)

		adiv++;			/* AUDIO_DIV_SERCLK_16 */



	/* S/PDIF asks for a larger divider */

	if (p->audio_format == AFMT_SPDIF)

		adiv++;			/* AUDIO_DIV_SERCLK_16 or _32 */



	reg_write(priv, REG_AUDIO_DIV, adiv);



	/*