kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

1 files changed, 0 insertions, 121 deletions

diff --git a/target/linux/layerscape/patches-5.4/801-audio-0053-MLK-18682-2-ASoC-fsl-sai-allow-dynamic-pll-switching.patch b/target/linux/layerscape/patches-5.4/801-audio-0053-MLK-18682-2-ASoC-fsl-sai-allow-dynamic-pll-switching.patch
deleted file mode 100644
index 373305d1c9..0000000000
--- a/target/linux/layerscape/patches-5.4/801-audio-0053-MLK-18682-2-ASoC-fsl-sai-allow-dynamic-pll-switching.patch
+++ /dev/null
@@ -1,121 +0,0 @@
-From b2dd96ec88b7eb4288ca39a1fc78176872c0683b Mon Sep 17 00:00:00 2001
-From: Viorel Suman <viorel.suman@nxp.com>
-Date: Wed, 27 Jun 2018 10:59:12 +0300
-Subject: [PATCH] MLK-18682-2: ASoC: fsl: sai: allow dynamic pll switching
-
-Currently SAI master clock derives from an audio pll that cannot be
-changed at runtime. iMX8 SoC has 2 audio plls usually configured to support
-either 8000Hz (8k,16k,32k,48k,etc) or 11025Hz (11k,22k,44.1k,88.2k,etc)
-ranges of rates - thus at runtime a SAI interface is able to play only one
-range of rates. The patch allows dynamic SAI master clock reparenting to
-the appropriate audio pll as function of the audio stream rate to be
-played/recorded.
-
-Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
----
- sound/soc/fsl/fsl_sai.c | 60 ++++++++++++++++++++++++++++++++++++++++++++-----
- sound/soc/fsl/fsl_sai.h |  2 ++
- 2 files changed, 57 insertions(+), 5 deletions(-)
-
---- a/sound/soc/fsl/fsl_sai.c
-+++ b/sound/soc/fsl/fsl_sai.c
-@@ -5,6 +5,7 @@
- // Copyright 2012-2016 Freescale Semiconductor, Inc.
- 
- #include <linux/clk.h>
-+#include <linux/clk-provider.h>
- #include <linux/delay.h>
- #include <linux/dmaengine.h>
- #include <linux/module.h>
-@@ -234,6 +235,50 @@ static int fsl_sai_set_dai_sysclk_tr(str
- 	return 0;
- }
- 
-+static int fsl_sai_set_mclk_rate(struct snd_soc_dai *dai, int clk_id,
-+		unsigned int freq)
-+{
-+	struct fsl_sai *sai = snd_soc_dai_get_drvdata(dai);
-+	struct clk *p = sai->mclk_clk[clk_id], *pll = 0, *npll = 0;
-+	u64 ratio = freq;
-+	int ret;
-+
-+	while (p && sai->pll8k_clk && sai->pll11k_clk) {
-+		struct clk *pp = clk_get_parent(p);
-+
-+		if (clk_is_match(pp, sai->pll8k_clk) ||
-+		    clk_is_match(pp, sai->pll11k_clk)) {
-+			pll = pp;
-+			break;
-+		}
-+		p = pp;
-+	}
-+
-+	if (pll) {
-+		npll = (do_div(ratio, 8000) ? sai->pll11k_clk : sai->pll8k_clk);
-+		if (!clk_is_match(pll, npll)) {
-+			if (sai->mclk_streams == 0) {
-+				ret = clk_set_parent(p, npll);
-+				if (ret < 0)
-+					dev_warn(dai->dev,
-+						"failed to set parent %s: %d\n",
-+						__clk_get_name(npll), ret);
-+			} else {
-+				dev_err(dai->dev,
-+					"PLL %s is in use by a running stream.\n",
-+					__clk_get_name(pll));
-+				return -EINVAL;
-+			}
-+		}
-+	}
-+
-+	ret = clk_set_rate(sai->mclk_clk[clk_id], freq);
-+	if (ret < 0)
-+		dev_err(dai->dev, "failed to set clock rate (%u): %d\n",
-+				freq, ret);
-+	return ret;
-+}
-+
- static int fsl_sai_set_dai_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
- {
- 	struct fsl_sai *sai = snd_soc_dai_get_drvdata(dai);
-@@ -262,12 +307,9 @@ static int fsl_sai_set_dai_sysclk(struct
- 			return -EINVAL;
- 		}
- 
--		ret = clk_set_rate(sai->mclk_clk[clk_id], freq);
--		if (ret < 0) {
--			dev_err(cpu_dai->dev, "failed to set clock rate (%u): %d\n",
--					freq, ret);
-+		ret = fsl_sai_set_mclk_rate(cpu_dai, clk_id, freq);
-+		if (ret < 0)
- 			return ret;
--		}
- 	}
- 
- 	ret = fsl_sai_set_dai_sysclk_tr(cpu_dai, clk_id, freq,
-@@ -1288,6 +1330,14 @@ static int fsl_sai_probe(struct platform
- 		}
- 	}
- 
-+	sai->pll8k_clk = devm_clk_get(&pdev->dev, "pll8k");
-+	if (IS_ERR(sai->pll8k_clk))
-+		sai->pll8k_clk = NULL;
-+
-+	sai->pll11k_clk = devm_clk_get(&pdev->dev, "pll11k");
-+	if (IS_ERR(sai->pll11k_clk))
-+		sai->pll11k_clk = NULL;
-+
- 	if (of_find_property(np, "fsl,sai-multi-lane", NULL))
- 		sai->is_multi_lane = true;
- 
---- a/sound/soc/fsl/fsl_sai.h
-+++ b/sound/soc/fsl/fsl_sai.h
-@@ -239,6 +239,8 @@ struct fsl_sai {
- 	struct regmap *regmap;
- 	struct clk *bus_clk;
- 	struct clk *mclk_clk[FSL_SAI_MCLK_MAX];
-+	struct clk *pll8k_clk;
-+	struct clk *pll11k_clk;
- 
- 	bool slave_mode[2];
- 	bool is_lsb_first;